Quetzaltrekkers - Nonprofit volunteer organization operating in Nicaragua and Guatemala, offers trekking packages with its proceedings to help streetkids and children at risk.
RainForest World - Adventure travel outfitter specializing in whitewater rafting, kayaking, hiking, and horseback trips in Costa Rica.
Randolph Mountain Club - Maintains a network of trails on the northern slopes of the Presidential Range in White Mountain National Forest, and on the Crescent Range in Randolph, New Hampshire.
Rose Garden Tours - Mae Hong Son tour operators outdoor, village, and temple trips.
Rotas do Vento - Adventure travel specialist operating trips to Europe, Africa, Asia and the Americas for trekking, hiking, rafting, canoeing and mountain biking.
Routeburn Guided Walk or Grand Traverse - Operates one, three and six day guided walks on New Zealand's Routeburn and Greenstone tracks. Provides enhanced safety, comfort, and education.
Ryder-Walker Alpine Adventures - Hiking and trekking adventures from the Gran Paradiso to Mont Blanc, Monte Rosa, the Swiss Alps, and Italian Dolomites. Self-guided Swiss travel as well.
Shammy - Indian voyages offers india travel, adventure travel india, holiday india, honeymoon tour india, wedding india, culture tour india, paddy tour india,leisure tour india, study tour india, senior citizen tour india, farming india, houseboat india.
Shangloo Travels - Offers trekking and tribal tours in Northern India.
Sila Sojourns - Offers wilderness and creative retreats for women.
Sky Island Treks - Offering multi-day backpacking trips in Arizona's National Forests, Grand Canyon, and Saguaro National Parks.
Slippers Before the Snows - Tells the story of trekking to Makalu Base Camp, part of the way in carpet slippers.
Slipstream - Wilderness adventure excursions including backcountry trekking and alpine granite and ice climbing in North America.
Some Fun - Journal of outings and adventures in the Mount Hood Wilderness Area.
Summit Maui - Adventure travel company offering challenging four day hiking vacations on the island of Maui.
Sun Valley Trekking - Backcountry guide service for hiking, skiing, snowboarding, snowshoeing, fishing, sea kayaking, hut and yurt rental, and more for Sun Valley and Yellowstone National Park. Tailored for various comfort levels.
Swedish Apolobamba Expedition 2001 - Swedish climbing expedition to Bolivia. New peaks climbed in the seldom visited Cordillera Apolobamba.
Take A Hike! - Offers hiking tours in the San Fernando, Philippines area.
Tenzing Norgay Adventures - Trekking the Himalayas of Nepal and Sikkim. Organized by Jamling Tenzing Norgay.
Tenzing Travel - Small group trekking in the Indian Himalaya, including the regions of Ladakh, Zanskar, Lahaul and Spiti.
Texins Outdoor Club - Encompasses many of the outdoor adventure sports, promotes goodwill and conservation of all our natural resources.
thebackpacker.com - Resources on hiking and backpacking including trail and gear reviews, information for beginners, message boards, and photo galleries.
Three Peaks Challenge - The adventures of Steve, Nick and Dave who climbed Ben Nevis in Scotland, Scafell Pike in the Lake Disrtict and Mount Snowdon in Wales within 24 hours.
Timberline Adventures - Guided, van-supported, inn-to-inn bicycling, mountain biking, hiking adventure tours throughout western U.S. & Canada, including many national parks & monuments.
Timberwolf Tours - Adventure holidays in the Canadian Rocky Mountains. Hiking, backpacking, camping, and canoeing for small groups.
Tongariro Expeditions - Specializes in expeditions to the Tongariro Crossing on the North Island of New Zealand.
Trail Journals - Hikers and backpackers share their journals and photos from the Appalachian Trail, the Pacific Crest Trail, and others. Features updated journals from hikers currently hiking as well as a directory of more than 1000 hikers. Includes trail forums, books, galleries, RSS feeds, and links.
