88 trips match your search for "United States"
NameTrip #DatesSpaces
Wilderness Cruise on Alaska's Inside Passage15015AAug 4–13, 2015Be First on Waiting List!
Hiking High: Humphreys Basin and Upper French Canyon, California15157AAug 6–11, 2015Be First on Waiting List!
Hiking the Muir Trail from Devils Postpile to Tuolumne Meadows, Yosemite National Park, California15301AAug 7–18, 20151
Kayaking the Na Pali Coast, Kauai, Hawaii15030AAug 8–14, 2015Be First on Waiting List!
Lakes and Peaks Along the John Muir Trail: Yosemite and Ansel Adams Wilderness, California15158AAug 8–15, 2015Waiting List
Adventure High in Wyoming's Wind River Mountains15125AAug 8–15, 2015Be First on Waiting List!
Pioneer Basin and Mono Recesses, John Muir Wilderness, California15159AAug 8–15, 2015Be First on Waiting List!
Wandering the Goat Rocks Wilderness, Washington15112AAug 9–14, 2015Waiting List
Star Tails and Hiking Trails: Service at Mt. Lassen National Volcanic Park, Caifornia15269AAug 9–15, 2015Be First on Waiting List!
John Muir Wilderness Trail Restoration, California15265AAug 9–15, 2015More than 5
Lake Superior Service, Isle Royale National Park, Michigan15270AAug 14–22, 2015Waiting List
Hiking High: Mammoth Crest to the Silver Divide, John Muir Wilderness, California15160AAug 14–18, 20155
Unplug, Unwind, and Dig In: Trail Work in the Idaho Panhandle15271AAug 15–22, 20151
Ionian Blue Epic, Kings Canyon National Park, California15162AAug 15–22, 2015Waiting List
Grizzlies, Glaciers, and Climate Change: Dayhiking in Glacier National Park, Montana15234AAug 15–22, 20151
Ring the Canyon, Bryce Canyon National Park, Utah15440AAug 16–22, 2015More than 5
Gros Ventre Wilderness Service, Wyoming15272AAug 16–22, 20151
Best of the Midwest: Day Hiking on the Superior Hiking Trail, Minnesota15233AAug 16–22, 2015Be First on Waiting List!
Olympic National Park Traverse, Washington15116AAug 16–22, 20151
Service in the Spectacular Yosemite Valley, California15273AAug 16–22, 2015Waiting List
High Lakes of Yosemite National Park, California15161AAug 16–24, 2015Waiting List
Canyons, Lakes, and Meadows of Northern Yosemite, California15302AAug 18–30, 20154
Tableland Tramp: Hiking Among the High Lakes of Sequoia National Park, California15163AAug 20–24, 2015Waiting List
Lake Basin High Country, Kings Canyon National Park, California15164AAug 21–29, 20151
Eagle Cap Wilderness Trail Repair, Oregon15274AAug 22–29, 20153
High Sierra Hikes and Photography in the Ansel Adams Wilderness, California15178AAug 22–28, 20152
Backpacking the Eagle Cap Wilderness: The Eagle Creek Loop, Oregon15113AAug 22–29, 2015Be First on Waiting List!
Lodge-Based Day Hikes in the Colorado High Country15236AAug 22–29, 2015Be First on Waiting List!
Gems of the Silver Divide, John Muir Wilderness, California15165AAug 22–30, 20151
Arctic Wilderness Fishing Base Camp in the Brooks Range, Alaska15018AAug 23–30, 2015Be First on Waiting List!
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, 20152
Gardiner Basin High Country, John Muir Wilderness, California15166AAug 29–Sep 7, 2015Be First on Waiting List!
Stepping off the Trail: Moderate Cross-Country Backpacking in the Emigrant Wilderness, California15168AAug 30–Sep 6, 20152
Mt. Humphreys Magic and Inspiration, John Muir Wilderness, California15167AAug 30–Sep 5, 20153
Wonderland Trail Loop, Mt. Rainier National Park, Washington15114ASep 1–11, 2015Waiting List
In the Shadow of Mount Olympus: Backpacking Olympic National Park, Washington15115ASep 6–13, 2015Waiting List
Prince William Sound Wilderness Cruise, Alaska15020ASep 6–13, 2015Be First on Waiting List!
Isolated Island Wilderness: Backpacking Isle Royale National Park, Michigan15105ASep 7–13, 2015Waiting List
Scuba Service in Monterey Bay's Kelp Forest, California15276ASep 12–19, 20154
Trail Work at Mt. Rainier National Park, Washington15277ASep 12–19, 2015Waiting List
Paddler's Paradise: Boundary Waters Canoe Area, Minnesota15193ASep 13–19, 2015Waiting List
Amazing Acadia and the Rockbound Coast of Maine15238ASep 13–19, 2015Be First on Waiting List!
Fantastic Four Pass Loop, Maroon Bells-Snowmass Wilderness, Colorado15120ASep 13–19, 2015Be First on Waiting List!
High Peaks and Huts of the White Mountains, New Hampshire15304ASep 13–18, 2015Be First on Waiting List!
Autumn in the Stehekin Valley, North Cascades National Park, Washington15239ASep 13–19, 2015Waiting List
Beginners Coastal Ramble Through Point Reyes National Seashore, California15169ASep 13–18, 2015Waiting List
Waterfalls, Alpine Lakes, and Wildflowers: Day Hikes in Colorado's San Juan Mountains15237ASep 13–19, 2015Waiting List
Fall Trail Work in the Red River Gorge, Kentucky15279ASep 19–26, 2015More than 5
50-Plus Pyramid Lake Service and Fun, Nevada15296ASep 20–26, 20152
Grasslands Research in the Valles Caldera, New Mexico15280ASep 20–25, 2015Waiting List
Service Among Ancestral Puebloan Ruins, Utah15281ASep 20–26, 2015Waiting List
Kayaking Cape Fear: Blackwater, Beach, and More, North Carolina15194ASep 20–26, 20151
Forbidden Heart of the Rainbow, Navajo Indian Reservation, Arizona and Utah15130ASep 20–26, 20152
Kayak, Hike, and Raft: A Women's Adventure in Southern Oregon15250ASep 20–25, 2015Waiting List
Georgia Gems: St. Mary's, Cumberland Island, and Okefenokee Swamp15197ASep 27–Oct 3, 2015More than 5
Tracks Across the Sierra, Tahoe National Forest, California15241ASep 27–Oct 4, 2015More than 5
Autumn Hikes in the Colorful Catskill Mountains, New York15240ASep 27–Oct 3, 2015More than 5
Wild Trout Recovery in Northern New Mexico15282ASep 27–Oct 2, 2015Waiting List
Fall Service at Bear Run Nature Reserve and Fallingwater, Pennsylvania15287ASep 27–Oct 3, 2015Waiting List
Gitche Gumee Gambol: Backpacking Pictured Rocks National Lakeshore, Michigan15106ASep 28–Oct 2, 20152
Sierra Club Outdoors National Conference at Clair Tappaan Lodge15995AOct 2–4, 2015More than 5
Piedras Blancas Light Station Service, Big Sur, California15285AOct 4–10, 2015Waiting List
Secrets of Kanab Canyon, Grand Canyon National Park, Arizona15131AOct 4–11, 2015Waiting List
Acadia National Park Service, Maine15283AOct 4–10, 2015Be First on Waiting List!
Martha's Vineyard Service, Massachusetts15297AOct 4–10, 2015Be First on Waiting List!
Sea and Service at Myrtle Beach State Park, South Carolina15286AOct 4–10, 2015Be First on Waiting List!
Fall Foliage Hiking in Vermont's Green Mountain National Forest15242AOct 4–9, 2015More than 5
New York City Parks Service at the Historic Bartow-Pell Conservancy15290AOct 11–18, 2015More than 5
Current River Canoeing, Ozark National Scenic Riverways, Missouri15195AOct 11–15, 20152
50-Plus Service at Clair Tappaan Lodge, Tahoe National Forest, California15288AOct 11–16, 20152
Hot Springs, Falling Water, and Service in Saline Valley, California15289AOct 18–24, 2015Be First on Waiting List!
Autumn Glory in Great Smoky Mountains National Park, Tennessee15244AOct 18–23, 2015More than 5
Habitat and History at Fort Ord, Monterey, California15291AOct 18–25, 20155
Caribbean Island Kayaking, Florida Keys and Dry Tortugas, Florida15196AOct 18–24, 2015Waiting List
Ancestral Pueblos of Chaco Canyon and Northern New Mexico15247AOct 19–25, 2015Be First on Waiting List!
Top of Texas, Guadalupe Mountains National Park15298AOct 24–31, 20152
Sea and Service at Point Reyes National Seashore, California15292AOct 24–31, 2015Be First on Waiting List!
Jewels of the Grand Canyon, Arizona15133AOct 25–31, 2015Waiting List
Women Backpacking in the Grand Canyon, Arizona15134AOct 31–Nov 7, 2015More than 5
Marvelous Muleshoe Ranch Service, Gailuro Mountains, Arizona15293ANov 1–7, 2015Be First on Waiting List!
Puerto Rico: From the Coast to the Mountains15031ANov 8–15, 2015Be First on Waiting List!
Florida's Cool Springs and Wild Rivers15198ANov 15–21, 2015Waiting List
Sun, Service and Whales, Maui, Hawaii16405AJan 3–10, 2016More than 5
Everglades Eco Adventure, Florida16415AJan 10–15, 2016More than 5
Hiking in Paradise, Maui and Kauai16400AJan 28–Feb 7, 2016Waiting List
National Outings Training Trip - Desert Backpacking16999AApr 20–24, 2016Waiting List
National Outings Training Trip - Lodge-Based Day Hiking16998AAug 16–20, 2016More than 5

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