325 trips match your search
NameTrip #DatesSpaces
Cruising the Galápagos Islands, Ecuador15500ADec 22, 2014–Jan 3, 2015Waiting List
Up Close in Undiscovered Costa Rica15505AJan 3–13, 2015Waiting List
Edge of the Everglades, Florida15415AJan 4–9, 2015Waiting List
Caribbean Sun and Sea in Vieques National Wildlife Refuge, Puerto Rico15401AJan 10–16, 2015Be First on Waiting List!
Gliding Through Glacier National Park, Montana15445AJan 17–24, 20154
Sun, Service, and Whales, Maui, Hawaii15400AJan 18–25, 2015Be First on Waiting List!
Extra-Virgin Island Sun, Sand, and Sport, St. John, U.S. Virgin Islands15402AJan 25–31, 20151
Ever Helpful in the Everglades, Florida15430AJan 25–31, 2015Waiting List
Mayan Mysteries: Jungles, Ruins, and Reefs, Belize and Guatemala15510AJan 26–Feb 7, 2015More than 5
Marvelous Muleshoe Ranch Service, Gailuro Mountains, Arizona15431AFeb 1–7, 2015Be First on Waiting List!
Work and Fun in Sunny St. John, U.S. Virgin Islands15403AFeb 1–7, 2015Be First on Waiting List!
Mountains, Forests, and Beaches of New Zealand's South Island15515AFeb 3–13, 20155
On Safari in Tanzania15520AFeb 5–17, 2015More than 5
Kilimanjaro and Safari, Tanzania15525AFeb 6–21, 20151
Treasures, Tigers, and the Taj Mahal, India15530AFeb 8–21, 2015Be First on Waiting List!
Hut-to-Hut Cross-Country Ski, Papineau-Labelle Wildlife Reserve, Quebec15447AFeb 14–20, 20154
Waterfalls, Waves, and Service in East Maui, Hawaii15025AFeb 15–22, 2015Waiting List
Altar Valley Wildlife Habitat, Arizona15433AFeb 15–21, 20152
Snowshoe Grand Teton National Park, Wyoming15448AFeb 15–22, 2015Be First on Waiting List!
Winter Wildlife and Hot Springs, Yellowstone National Park, Wyoming15449AFeb 15–22, 2015Waiting List
Journey Through Untamed Wilderness, Alaska Dogsled15450AFeb 15–21, 2015Be First on Waiting List!
Devilish Tasmania, Australia15535AFeb 17–28, 20152
Due to lodging considerations, available space is reserved for One Male
Women Weeding in the Wild: Service in Anza Borrego, California15435AFeb 21–28, 2015More than 5
Reclaiming the Rosillos, Texas15434AFeb 21–28, 20153
Audubon Research Ranch Service, Appleton-Whittell Research Ranch, Arizona15436AFeb 22–28, 20153
Classic Hikes in Big Bend National Park, Texas15410AFeb 22–28, 2015Waiting List
Natural and Historical Highlights of Israel15540AMar 1–14, 2015More than 5
Altar Valley Wildlife Habitat, Arizona15437AMar 1–7, 20155
Wild, Wonderful Costa Rica15545AMar 1–14, 2015Waiting List
Active Adventure on the Seventh Continent, Antarctica15550AMar 3–14, 2015Waiting List
Cultural Discovery and Service in Nepal15555AMar 4–17, 2015More than 5
Vietnam Adventure15560AMar 4–19, 2015Be First on Waiting List!
Critical Bird Habitat Restoration on Mauna Kea, Big Island, Hawaii15026AMar 8–14, 2015More than 5
Journey Through Untamed Wilderness, Alaska Dogsled15446AMar 8–14, 2015Be First on Waiting List!
Sand Pine, Silver Water, and Service, Ocala National Forest, Florida15438AMar 8–13, 2015More than 5
Springtime Hiking and Birding in Big Bend National Park, Texas15420AMar 12–18, 2015Be First on Waiting List!
Saving the San Pedro River, Arizona15439AMar 15–21, 2015More than 5
Magic in the Water, Florida15418AMar 15–21, 2015Waiting List
Cross-Country Skiing in the Shadow of Denali, Alaska15451AMar 22–27, 2015Be First on Waiting List!
Hiking Japan's Ancient Buddhist Trails, Rainforests, and Volcanoes, Kyushu15565AMar 23–Apr 4, 2015Waiting List
Spring Rafting, Hiking, Wildflowers, and Wilderness Canyons, Upper Salt River, Arizona15425AMar 24–28, 2015Waiting List
Big Sur Service, Pfeiffer State Park, California15065AMar 28–Apr 3, 20152
Women Backpacking the Wonders of the Grand Canyon, Arizona15405AMar 30–Apr 4, 20151
Mystery of the Rainbow, Navajo Indian Reservation, Arizona and Utah15035AApr 4–11, 20154
Nantahala Toil and Trek, North Carolina15066AApr 5–11, 20155
Grand Staircase-Escalante Llama Hike, Utah15080AApr 5–11, 2015Be First on Waiting List!
Magic and Mystery of Manaslu, Nepal15570AApr 5–29, 2015More than 5
Kayak or Canoe Way Down upon the Suwannee River, Georgia and Florida15050AApr 5–11, 2015More than 5
Springtime Hike, Bike, and Float in the Mojave Desert, Nevada15055AApr 5–11, 20154
Royal Arch and Elves Chasm Loop, Grand Canyon National Park, Arizona15036AApr 11–18, 2015Be First on Waiting List!
To Hell and Back: Service in Hells Canyon, Idaho15067AApr 11–18, 2015More than 5
Into the Heart of Tarahumara Country, Copper Canyon, Mexico15575AApr 12–25, 2015More than 5
Service and History at Shenandoah Valley Battlefields, Virginia15069AApr 12–18, 20155
Jewels of the Grand Canyon, Arizona15037AApr 12–18, 2015Be First on Waiting List!
Springtime in the Smokies, Tennessee15045AApr 12–18, 2015More than 5
Mammoth Cave National Park Service, Kentucky15068AApr 12–18, 2015More than 5
New York City Forestry Service, New York15255AApr 12–18, 2015More than 5
Grand Staircase-Escalante Llama Hike, Utah15080BApr 14–20, 20153
Kanab Creek Wilderness: Expansive Esplanade Terraces Fractured by Canyons, Grand Canyon Area, Arizona15038AApr 18–25, 2015Waiting List
Somewhere Over the Rainbow, Navajo Indian Reservation, Arizona and Utah15039AApr 18–25, 2015Waiting List
Kayaking Georgia's Untamed Coast: Sea Islands and Wild Rivers15051AApr 19–25, 2015More than 5
Beyond Hollywood: The Natural Beauty of Southern California15056AApr 19–26, 2015More than 5
Machu Picchu Eco-Lodge Trek, Peru15580AApr 25–May 5, 20151
Due to lodging considerations, available space is reserved for One Male
Springtime in Western Turkey15585AApr 25–May 8, 20155
Thunder, Wonder, and Awe, Grand Canyon National Park, Arizona15040AApr 26–May 2, 2015Be First on Waiting List!
Kayaking Coastal Carolina, South Carolina15052AApr 26–May 2, 2015Be First on Waiting List!
Red Rock Eden, Capitol Reef National Park, Utah15070AApr 26–May 2, 20151
The Enchanted Galápagos Islands, Ecuador15590AApr 27–May 9, 2015More than 5
City in a Garden: Spring Service in Chicago, Illinois15078AMay 3–9, 2015More than 5
Hiking in the Hidden Kingdom, Bhutan15595AMay 3–16, 2015Be First on Waiting List!
Spring Service in Arches National Park, Utah15071AMay 3–9, 2015More than 5
National Outings Training Trip - Southeast/Northeast15999AMay 6–10, 2015Waiting List
Capitol Reef Natural History Base Camp, Utah15046AMay 7–13, 2015Waiting List
Service and Kayaking the Treasures of the Dry Tortugas, Florida15073AMay 9–16, 2015Waiting List
Sea and Service at Point Reyes National Seashore, California15072AMay 9–16, 2015More than 5
Walking the Cotswolds, England15600AMay 10–20, 2015More than 5
Beginners Coastal Backpack, Point Reyes National Seashore, California15140AMay 10–15, 2015More than 5
Farm Service on Martha's Vineyard, Massachusetts15294AMay 10–16, 2015More than 5
Wildflowers and Waterfalls: Dayhiking in the Columbia Gorge, Oregon and Washington15215AMay 10–15, 2015More than 5
Kalaupapa Culture, Service, and Calm, Molokai, Hawaii15027AMay 11–15, 2015Waiting List
Multi-Subcommittee WFA15945AMay 14–15, 2015More than 5
Multi-Subcommittee Meeting15950AMay 15–17, 2015More than 5
OLT 201 Train the Trainer workshop15947AMay 15, 2015More than 5
Redrock Canyons of Escalante, Utah15041AMay 16–22, 2015Waiting List
Santa Rosa Island Service, Channel Islands National Park, California15074AMay 16–22, 2015Waiting List
Wildlife and Photography Cruise, Prince William Sound, Alaska15022AMay 16–23, 2015More than 5
Walking the Franciscan Trail, Umbria, Italy15605AMay 17–28, 20155
Service at Antietam National Battlefield, Maryland15075AMay 17–23, 2015More than 5
Wild Trout Recovery in Northern New Mexico15076AMay 17–23, 2015More than 5
Mountains, Lochs, and Glens: The West Highland Way, Scotland15610AMay 18–27, 2015Waiting List
Islands, Glaciers, Mountains, and Fjords: Cycling Alaska's Inside Passage15005AMay 18–26, 2015More than 5
Hiking Japan's Ancient Buddhist Trails, Rainforests, and Volcanoes, Kyushu15565BMay 18–30, 2015More than 5
Natural History of the Needles, Canyonlands National Park, Utah15047AMay 19–25, 2015Waiting List
Springtime in Northern Yunnan, China15675AMay 24–Jun 7, 2015More than 5
Hiking and History in Southern England15615AMay 24–Jun 3, 20151
New York City Park Service15295AMay 24–31, 2015More than 5
Rafting the Wild and Free Yampa, Dinosaur National Monument, Colorado and Utah15060AMay 25–29, 2015Waiting List
Vienna to Prague: Walking the Czech Greenways, Austria and Czech Republic15620AMay 28–Jun 10, 20152
Southern Sierra on the Pacific Crest Trail, California15141AMay 30–Jun 6, 2015More than 5
Jewels of Croatia: Forests, Rivers, and Islands15625AMay 31–Jun 13, 2015Waiting List
Cycling Missouri's Historic Katy Trail15185AMay 31–Jun 6, 2015More than 5
Service in the Footsteps of Geronimo, Chiricahua Wilderness, Arizona15077AMay 31–Jun 6, 2015More than 5
Rafting the Wild and Free Yampa, Dinosaur National Monument, Colorado and Utah15060BJun 1–5, 2015More than 5
Hike, Bike, and Sea Kayak the San Juan Islands, Washington15175AJun 1–7, 2015More than 5
Hidden Trails of Cinque Terre and the Italian Riviera, Italy and France15630AJun 2–13, 2015More than 5
Botswana and Zambia: A Living Eden15635AJun 4–16, 2015More than 5
Lake Michigan Bike and Hike, Sleeping Bear Dunes National Lakeshore, Michigan15186AJun 6–12, 2015More than 5
Mule Packer Paradise: Ranch Maintenance in Shawnee, Colorado15258AJun 7–14, 2015More than 5
Meditation and Music in Marin, California15216AJun 7–13, 2015More than 5
Women on Top of the World: Backpacking the Arctic National Wildlife Refuge, Alaska15006AJun 7–15, 2015Waiting List
Monhegan Island: Jewel of the Sea, Maine15257AJun 7–13, 20154
Backpacking the Brooks Range at the Moment of Spring, Arctic National Wildlife Refuge, Alaska15007AJun 8–23, 2015Waiting List
In Search of the Polar Bear in the Land of the Midnight Sun, Norway15655AJun 12–19, 2015Waiting List
Star Party on the North Rim, Grand Canyon National Park, Arizona15259AJun 14–20, 2015More than 5
Poets and Pilgrims: A Literary Walking Tour of Ireland15640AJun 14–25, 2015More than 5
Ridges, Rivers, Rainforests, and Waves in Olympic National Park, Washington15217AJun 14–19, 2015More than 5
Prehistory in the Shadow of the Alps, Italy and France15645AJun 15–26, 2015More than 5
England's Coast-to-Coast Walk: From the Irish Sea to the North Sea15650AJun 15–28, 2015Waiting List
Valdez Cabin and Trail Maintenance, Prince William Sound, Alaska15008AJun 17–23, 20153
Packrafting the Wild Rivers of the Kenai Peninsula, Alaska15009AJun 20–26, 2015More than 5
Chaco Canyon Service, New Mexico15260AJun 20–27, 2015More than 5
Coastal Exploration and Culture Along Kauai's North Shore, Hawaii15028AJun 20–26, 2015More than 5
Sand, Surf, and Service Along the California Coast15261AJun 21–27, 2015More than 5
Wanderlust and Wildflowers in Washington's North Cascades15218AJun 21–27, 2015More than 5
Trail Building in the Colorado Rockies15262AJun 21–27, 2015More than 5
Easy Hiking the Dolomites, Italy15725AJun 22–Jul 5, 2015More than 5
Hiking the Alps of Bavaria and Tyrol, Germany and Austria15660AJun 23–Jul 4, 2015More than 5
World-Class Whitewater: Rafting the Middle Fork of the Salmon River, Idaho15061AJun 24–29, 2015Be First on Waiting List!
Deep Wilderness Canoeing in Wabakimi Provincial Park, Ontario, Canada15190AJun 27–Jul 5, 20154
Kilimanjaro and Safari, Tanzania15525BJun 27–Jul 12, 2015More than 5
Family Fun in Paradise, Costa Rica15815AJun 27–Jul 6, 2015More than 5
Eiger and Jungfrau Up Close, Switzerland15665AJun 28–Jul 6, 2015More than 5
Yoga and Hiking in the Redwoods, Marin County, California15219AJun 28–Jul 4, 2015More than 5
Kayaking Among Glaciers in Prince William Sound, Alaska15010AJun 28–Jul 6, 2015More than 5
Backdoor to Yosemite's Lake 10,005, California15143AJun 29–Jul 4, 2015More than 5
Backcountry Trail Preservation in the Bob Marshall Wilderness, Montana15263AJun 29–Jul 5, 2015More than 5
Treasures of Southern Yosemite and the Ritter Range, California15142AJun 30–Jul 4, 2015More than 5
Rafting Among Glaciers and Grizzlies: Tatshenshini and Alsek Rivers, Alaska and British Columbia15021AJul 1–11, 2015More than 5
Trek Across the Generation Gap, Yosemite National Park, California15144AJul 2–6, 2015More than 5
Explore Glacier Bay by Yacht, Alaska15011AJul 2–10, 20152
Fire, Ice, and Water, Iceland15730AJul 3–17, 2015More than 5
Finland Discovered: Culture, History, and Nature15735AJul 6–16, 2015More than 5
Family Rafting in Dinosaur National Monument, Utah15205AJul 9–12, 2015More than 5
Waterfalls, Peaks and Domes, Yosemite National Park, California15145AJul 11–18, 2015More than 5
Hike and Snorkel an Island Paradise, Kauai, Hawaii15029AJul 11–19, 2015More than 5
Puffins, Whales, and Coastal Trails: Hiking Newfoundland's East Coast Trail, Canada15220AJul 11–18, 2015More than 5
Hiking the High Sierra and the Pacific Crest Trail, Mokelumne Wilderness, California15222AJul 12–18, 2015More than 5
Lodge Adventure in America's Alps, North Cascades, Washington15223AJul 12–17, 2015More than 5
Vistas and Volcanoes in the Cascades and High Desert of Central Oregon15224AJul 12–17, 2015More than 5
Family Fun in a Marine Paradise, Channel Islands National Park, California15206AJul 12–18, 2015More than 5
Biodiversity and Day Hikes in Olympic National Park, Washington15221AJul 12–17, 2015More than 5
Canoeing, Hiking, and Rock Art in Labyrinth Canyon, Green River, Utah15191AJul 13–17, 2015More than 5
Dolomiti di Brenta: Trekking the Trentino Alps, Italy15740AJul 15–23, 2015More than 5
Best of the High Sierra Camps, Yosemite National Park, California15147AJul 15–22, 2015More than 5
Family Ramble, Rocky Mountain National Park, Colorado15208AJul 18–25, 2015More than 5
Sawtooth Sashay, Idaho15121AJul 18–24, 20154
Introduction to Backpacking in the High Sierra, Tahoe National Forest, California15148AJul 18–24, 2015More than 5
Signature Day Hikes in Yosemite's Tuolumne Meadows, California15176AJul 19–25, 2015More than 5
Just for Grandparents and Grandkids, Tahoe National Forest, California15209AJul 19–24, 2015More than 5
Exploring Norway's Fjords and Glaciers15745AJul 19–29, 20153
Beginners Backpack to the Lakes of the Emigrant Wilderness, California15149AJul 19–26, 2015More than 5
Backpacking the Catskill Mountains, New York15100AJul 19–26, 2015More than 5
Mt. Whitney Trail Camp Service, California15264AJul 19–25, 2015More than 5
Summer in the Stehekin Valley, North Cascades National Park, Washington15225AJul 19–25, 2015More than 5
Beartooth Bliss: Day Hikes in Glacial Valleys, Montana15226AJul 19–25, 2015More than 5
Lakes, Meadows, and Vistas of Northern Yosemite, California15150AJul 19–23, 2015More than 5
Trail Repair in Denali National Park, Alaska15012AJul 20–26, 2015Be First on Waiting List!
Wilderness Backpacking in Kluane National Park, Yukon Territory15014AJul 21–27, 2015More than 5
Ghost Towns and Glaciers: Backpacking Wrangell-St. Elias National Park, Alaska15013AJul 23–Aug 1, 2015More than 5
Wild and Scenic Rogue River Family Rafting, Oregon15210AJul 23–26, 2015More than 5
Stehekin Valley Backpacking, Washington15110AJul 24–31, 2015Be First on Waiting List!
Northern Yosemite's Lakes, Canyons, and Passes, California15151AJul 25–Aug 1, 2015More than 5
Grizzlies, Glaciers, and Climate Change: Dayhiking in Glacier National Park, Montana15227AJul 25–Aug 1, 2015More than 5
Rae Lakes and the Kings Canyon High Country, California15152AJul 25–Aug 1, 2015More than 5
Painting Along the Sierra Trails, Tahoe National Forest, California15229AJul 26–Aug 1, 2015More than 5
Sprucing Up the East Coast Trail, Newfoundland, Canada15266AJul 26–Aug 2, 2015More than 5
Sierra Vistas and Family Fun in Tahoe National Forest, California15212AJul 26–31, 2015More than 5
Hikes and Bites: A Farm-Fresh Food Tour in Vermont15228AJul 26–Aug 1, 2015More than 5
Multigenerational Teen Service in Yosemite's Tuolumne Meadows, California15211AJul 26–Aug 1, 2015More than 5
Emigrant Wilderness: The High Sierra's Best Kept Secret, California15170AJul 26–Aug 3, 2015More than 5
Cruising the Galápagos Islands, Ecuador15850AJul 26–Aug 6, 2015More than 5
Trekking Tumble Creek, Wrangell-St. Elias National Park, Alaska15016AJul 29–Aug 10, 20153
Southeastern Yosemite's Hidden Headwaters, California15153AJul 30–Aug 8, 2015Be First on Waiting List!
Hiking and Culture on Newfoundland's Bonavista Peninsula, Canada15245AJul 30–Aug 6, 2015More than 5
Peaks, Passes, and Panoramas in Yosemite and the Ansel Adams Wilderness, California15156AAug 1–8, 2015More than 5
Intriguing Mongolia Trek15690AAug 1–14, 2015More than 5
Wind Rivers East Fork Escapade, Wyoming15122AAug 1–8, 20152
Journey Through Evolution, North Lake to South Lake, Kings Canyon National Park, California15154AAug 1–9, 2015More than 5
Service in the Selway-Bitterroot Wilderness, Montana and Idaho15268AAug 2–8, 2015More than 5
Backpacking in the Breathtaking Beartooths, Montana15123AAug 2–8, 2015More than 5
Service and Whitewater Rafting, New River Gorge, West Virginia15267AAug 2–8, 2015More than 5
Music in the Mountains: Stanislaus and Toiyabe National Forests, California15230AAug 2–8, 2015More than 5
Whales, Water, and Wildlife of the San Juan Islands, Washington15231AAug 2–7, 2015More than 5
Welcome to the Wilderness, Mt. Hood Wilderness, Oregon15177AAug 2–7, 2015More than 5
Continental Divide Through the Wind River Range, Wyoming15126AAug 2–9, 2015More than 5
A Cross-Country Adventure Along the LeConte Divide, Kings Canyon National Park, California15155AAug 2–10, 2015More than 5
Machu Picchu, Inca Hikes, and Andean Culture, Peru15825AAug 2–13, 2015More than 5
High Alpine Lakes of the Weminuche Wilderness, Colorado15300AAug 3–7, 2015More than 5
Wilderness Cruise on Alaska's Inside Passage15015AAug 4–13, 20151
Hiking High: Humphreys Basin and Upper French Canyon, California15157AAug 6–11, 2015More than 5
Bear Grass in the Bob Marshall Wilderness, Montana15124AAug 7–15, 2015More than 5
Hiking the Muir Trail from Devils Postpile to Tuolumne Meadows, Yosemite National Park, California15301AAug 7–18, 2015More than 5
Pioneer Basin and Mono Recesses, John Muir Wilderness, California15159AAug 8–15, 2015More than 5
Kayaking the Na Pali Coast, Kauai, Hawaii15030AAug 8–14, 2015More than 5
Adventure High in Wyoming's Wind River Mountains15125AAug 8–15, 2015More than 5
Canadian Rockies Van Venture: Banff, Lake Louise, and Jasper, Alberta15232AAug 8–15, 2015More than 5
Lakes and Peaks Along the John Muir Trail: Yosemite and Ansel Adams Wilderness, California15158AAug 8–15, 2015More than 5
Star Tails and Hiking Trails: Service at Mt. Lassen National Volcanic Park, Caifornia15269AAug 9–15, 2015More than 5
John Muir Wilderness Trail Restoration, California15265AAug 9–15, 2015More than 5
Wandering the Goat Rocks Wilderness, Washington15112AAug 9–14, 2015More than 5
Exploring Norway's Fjords and Glaciers15750AAug 10–20, 2015More than 5
Hiking High: Mammoth Crest to the Silver Divide, John Muir Wilderness, California15160AAug 14–18, 2015More than 5
Lake Superior Service, Isle Royale National Park, Michigan15270AAug 14–22, 2015More than 5
Orcas, Totems, and Grizzlies: Sailing Northern Vancouver Island, British Columbia15017AAug 14–20, 2015More than 5
Ionian Blue Epic, Kings Canyon National Park, California15162AAug 15–22, 2015More than 5
In Search of Ancient Ireland15755AAug 15–28, 2015More than 5
Unplug, Unwind, and Dig In: Trail Work in the Idaho Panhandle15271AAug 15–22, 2015More than 5
Grizzlies, Glaciers, and Climate Change: Dayhiking in Glacier National Park, Montana15234AAug 15–22, 2015More than 5
High Lakes of Yosemite National Park, California15161AAug 15–23, 2015More than 5
Sea Kayaking at Isle Royale National Park, Michigan15192AAug 16–23, 20153
Gros Ventre Wilderness Service, Wyoming15272AAug 16–22, 2015More than 5
Olympic National Park Traverse, Washington15116AAug 16–22, 2015More than 5
Best of the Midwest: Day Hiking on the Superior Hiking Trail, Minnesota15233AAug 16–22, 2015More than 5
Service in the Spectacular Yosemite Valley, California15273AAug 16–22, 2015More than 5
Canyons, Lakes, and Meadows of Northern Yosemite, California15302AAug 18–29, 2015More than 5
Tanzania Safari in the Footsteps of the Maasai15680AAug 20–30, 2015More than 5
Tableland Tramp: Hiking Among the High Lakes of Sequoia National Park, California15163AAug 20–24, 2015More than 5
Lake Basin High Country, Kings Canyon National Park, California15164AAug 21–29, 2015More than 5
A Taste of the Sierra, Tahoe National Forest, California15246AAug 22–29, 2015More than 5
Backpacking the Eagle Cap Wilderness: The Eagle Creek Loop, Oregon15113AAug 22–29, 2015More than 5
Lodge-Based Day Hikes in the Colorado High Country15236AAug 22–29, 2015More than 5
Eagle Cap Wilderness Trail Repair, Oregon15274AAug 22–29, 2015More than 5
Exploring Lake Tahoe by Foot and Paddle, California15235AAug 22–28, 2015More than 5
Gems of the Silver Divide, John Muir Wilderness, California15165AAug 22–30, 20153
Arctic Wilderness Fishing Base Camp in the Brooks Range, Alaska15018AAug 23–30, 2015Be First on Waiting List!
High Sierra Hikes and Photography in the Ansel Adams Wilderness, California15178AAug 23–28, 2015More than 5
Blowin' in the Winds: Service in the Wind River Range, Wyoming15275AAug 23–29, 2015More than 5
Western Brooks Range Ramble, Noatak National Preserve, Alaska15019AAug 24–Sep 4, 2015More than 5
Gardiner Basin High Country, John Muir Wilderness, California15166AAug 29–Sep 7, 20155
Mt. Humphreys Magic and Inspiration, John Muir Wilderness, California15167AAug 30–Sep 5, 20152
Stepping off the Trail: Beginner Cross-Country Backpacking in the Emigrant Wilderness, California15168AAug 30–Sep 6, 2015More than 5
Adventures in the Scottish Highlands, Scotland15760AAug 31–Sep 10, 2015Be First on Waiting List!
Wonderland Trail Loop, Mt. Rainier National Park, Washington15114ASep 1–11, 2015Waiting List
Hidden Trails of Cinque Terre and the Italian Riviera, Italy and France15630BSep 1–12, 2015More than 5
On Foot in Northern Spain: Camino de Santiago and Picos de Europa15765ASep 2–13, 20152
Prince William Sound Wilderness Cruise, Alaska15020ASep 6–13, 2015More than 5
England's Coast-to-Coast Walk: Lakes, Dales, Moors, and More15770ASep 6–19, 20151
In the Shadow of Mount Olympus: Backpacking Olympic National Park, Washington15115ASep 6–13, 2015More than 5
Hot Springs and Waterfalls Llama Hike, Yellowstone National Park, Wyoming15303ASep 7–12, 2015Be First on Waiting List!
Isolated Island Wilderness: Backpacking Isle Royale National Park, Michigan15105ASep 7–13, 20155
Cycling the Historic Erie Canal Pathway, New York15187ASep 11–19, 2015More than 5
Trail Work at Mt. Rainier National Park, Washington15277ASep 12–19, 2015More than 5
Scuba Service in Monterey Bay's Kelp Forest, California15276ASep 12–19, 2015More than 5
A Taste of Tuscany and Cinque Terre, Italy15780ASep 12–23, 2015More than 5
Paddler's Paradise: Boundary Waters Canoe Area, Minnesota15193ASep 13–19, 2015Be First on Waiting List!
High Peaks and Huts of the White Mountains, New Hampshire15304ASep 13–18, 2015More than 5
Jewels of Croatia: Forests, Rivers, and Islands15785ASep 13–26, 20151
Fantastic Four Pass Loop, Maroon Bells-Snowmass Wilderness, Colorado15120ASep 13–19, 2015More than 5
Beginners Coastal Ramble Through Point Reyes National Seashore, California15169ASep 13–18, 2015More than 5
Autumn in the Stehekin Valley, North Cascades National Park, Washington15239ASep 13–19, 2015More than 5
Archaeological Restoration in Mesa Verde National Park, Colorado15278ASep 13–19, 2015Waiting List
Amazing Acadia and the Rockbound Coast of Maine15238ASep 13–19, 2015More than 5
Waterfalls, Alpine Lakes, and Wildflowers: Day Hikes in Colorado's San Juan Mountains15237ASep 13–19, 2015More than 5
Easy Hiking Chamonix, France15775ASep 14–23, 2015More than 5
Trekking the Turquoise Coast of Turkey15790ASep 18–Oct 3, 2015More than 5
Fall Trail Work in the Red River Gorge, Kentucky15279ASep 19–26, 2015More than 5
Grasslands Research in the Valles Caldera, New Mexico15280ASep 20–25, 2015More than 5
Service Among Ancestral Puebloan Ruins, Utah15281ASep 20–26, 2015More than 5
50-Plus Pyramid Lake Service and Fun, Nevada15296ASep 20–26, 2015More than 5
Forbidden Heart of the Rainbow, Navajo Indian Reservation, Arizona and Utah15130ASep 20–26, 2015More than 5
Kayak, Hike, and Raft: A Women's Adventure in Southern Oregon15250ASep 20–25, 2015More than 5
Kayaking Cape Fear: Blackwater, Beach, and More, North Carolina15194ASep 20–26, 2015More than 5
Hiking the Greek Islands15795ASep 22–Oct 5, 2015Waiting List
Magical Morocco: From Casbahs to Camels15685ASep 26–Oct 11, 2015More than 5
Wild Trout Recovery in Northern New Mexico15282ASep 27–Oct 2, 2015More than 5
Autumn Hikes in the Colorful Catskill Mountains, New York15240ASep 27–Oct 3, 2015More than 5
Walking the Franciscan Trail, Umbria, Italy15605BSep 27–Oct 8, 2015More than 5
Naples to Brindisi: Secrets of Southern Italy15800ASep 27–Oct 8, 2015More than 5
Tracks Across the Sierra, Tahoe National Forest, California15241ASep 27–Oct 4, 2015More than 5
Fall Service at Bear Run Nature Reserve and Fallingwater, Pennsylvania15287ASep 27–Oct 3, 2015Waiting List
Georgia Gems: St. Mary's, Cumberland Island, and Okefenokee Swamp15197ASep 27–Oct 3, 2015More than 5
Gitche Gumee Gambol: Backpacking Pictured Rocks National Lakeshore, Michigan15106ASep 28–Oct 2, 2015More than 5
Secrets of Kanab Canyon, Grand Canyon National Park, Arizona15131AOct 3–10, 2015More than 5
Martha's Vineyard Service, Massachusetts15297AOct 4–10, 2015More than 5
Fall Foliage Hiking in Vermont's Green Mountain National Forest15242AOct 4–9, 2015More than 5
Sea and Service at Myrtle Beach State Park, South Carolina15286AOct 4–10, 2015More than 5
Hidden History and Service at Valley Forge National Historic Park, Pennsylvania15284AOct 4–10, 2015More than 5
Piedras Blancas Light Station Service, Big Sur, California15285AOct 4–10, 2015More than 5
Acadia National Park Service, Maine15283AOct 4–10, 2015More than 5
Treasures of Sicily, Italy15805AOct 10–21, 2015More than 5
Royal Arch and Elves Chasm Loop, Grand Canyon National Park15132AOct 10–17, 2015More than 5
Autumn Alpine Trek in Bhutan15695AOct 10–27, 2015More than 5
New York City Parks Service at the Historic Bartow-Pell Conservancy15290AOct 11–18, 2015More than 5
Borneo Explorer, Malaysia15700AOct 11–24, 2015Waiting List
Current River Canoeing, Ozark National Scenic Riverways, Missouri15195AOct 11–15, 2015More than 5
50-Plus Service at Clair Tappaan Lodge, Tahoe National Forest, California15288AOct 11–16, 2015More than 5
Hike, Bike, and Kayak in Vietnam15705AOct 17–31, 2015More than 5
Habitat and History at Fort Ord, Monterey, California15291AOct 18–25, 2015More than 5
Autumn Glory in Great Smoky Mountains National Park, Tennessee15244AOct 18–23, 2015More than 5
Hot Springs, Falling Water, and Service in Saline Valley, California15289AOct 18–24, 2015More than 5
Caribbean Island Kayaking, Florida Keys and Dry Tortugas, Florida15196AOct 18–24, 20154
Ancestral Pueblos of Chaco Canyon and Northern New Mexico15247AOct 19–25, 2015More than 5
Mt. Everest Lodge Trek, Nepal15710AOct 22–Nov 13, 2015More than 5
Top of Texas, Guadalupe Mountains National Park15298AOct 24–31, 2015More than 5
Sea and Service at Point Reyes National Seashore, California15292AOct 24–31, 2015More than 5
Focus on Birds in Ecuador, Hummingbird Heaven15830AOct 25–Nov 11, 2015More than 5
Jewels of the Grand Canyon, Arizona15133AOct 25–31, 2015More than 5
Trekking the Patagonia Circuit, Argentina and Chile15835AOct 26–Nov 6, 2015More than 5
Splendors of Jordan: Petra, Desert Hiking, and the Dead Sea15845AOct 26–Nov 8, 2015More than 5
Women Backpacking in the Grand Canyon, Arizona15134AOct 31–Nov 7, 2015More than 5
Marvelous Muleshoe Ranch Service, Gailuro Mountains, Arizona15293ANov 1–7, 2015More than 5
Machu Picchu Eco-Lodge Trek, Peru15840ANov 2–12, 2015Waiting List
Machu Picchu Eco-Lodge Trek, Peru15840BNov 4–14, 2015More than 5
Wheels Over Cuba: Conservation at a Crossroads15720ANov 5–15, 2015More than 5
Laotian Hill Tribe Trek15715ANov 8–21, 2015More than 5
Puerto Rico: From the Coast to the Mountains15031ANov 8–15, 2015More than 5
Florida's Cool Springs and Wild Rivers15198ANov 15–21, 2015More than 5
In Search of the Aurora Borealis: Sailing the Lofoten Islands, Norway15810ANov 26–Dec 4, 2015More than 5
Birding Panama: Camp Darien to Mountain Lodge15820ADec 15–26, 2015More than 5
Enchanting Galápagos: A Holiday Adventure in Ecuador16505ADec 20, 2015–Jan 1, 2016More than 5
Natural Highlights of Costa Rica16510ADec 21, 2015–Jan 2, 2016More than 5
Exploring Exotic Ecuador: Coast, Andes, and Amazon16515ADec 22, 2015–Jan 3, 2016More than 5
Best of Belize: Rainforest, Ruins, and Reefs16520ADec 26, 2015–Jan 2, 2016More than 5
Treasures of Thailand: Bangkok, Chiang Mai, and the Andaman Sea16500AJan 11–24, 2016More than 5
Hiking in Paradise, Maui and Kauai16400AJan 28–Feb 7, 2016More than 5

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