| Action Challenge
Organisers of hiking, biking, riding and rafting expeditions around the world. Works with charities, companies, and private groups. Based in London, England.
Runs hiking and biking trips in the western United States, including Hawaii, Central America, and Asia. Includes area information and photos.
| Adventure Club of New Jersey
Specializes in sailing in the Caribbean, South Pacific, and Mediterranean; skiing in Colorado, Canada, and western United States; plus local hiking, biking, and inline skating.
| Adventure Planet
Plans biking and hiking trips to Moab, Utah; Baja, Mexico; Alaska; and worldwide to Nepal, Thailand, India, and Peru.
| Adventure Treks
Offers trekking, snow-shoeing, and multi-activity trips in Chamonix, the Alps, Tunisia, and Peru. Based in Chamonix, France.
| Alaska Bush Safari Company
Customized private adventure tours of Alaska. Catering to small groups and families. Air tours, back country expeditions, wildlife safaris, National Park and glacier tours.
| Alpine Interface
Guided trekking and hiking tours to the Alps, the Himalayas, southwestern United States, and Mexico plus snow shoeing and ice climbing in the winter. Includes trek, accommodation, and company information. Based in Connecticut.
| Andiamo Adventours
Walking and cycling tours in Europe and California. Offices in Santa Cruz, California and Switzerland.
| Backroads Active Travel
Bicycling, hiking, walking, cross-country skiing and multisport vacations in Europe and the United States.
| Been There Yet
Customized trips including polar bear safaris, white water rafting and mountain climbing. Includes photo gallery, currency exchange and library.
| Beyond Limits
Offers custom and fixed itineraries including trekking, climbing, skiing, kayaking, and biking worldwide. Includes details for fixed itinerary trips.
| BikeHike Adventures
Offers multi-sport small group tours in South and Central America, Canada, and New Zealand. Trips involve biking, hiking, rafting, climbing, and other activities.
| Breakaway Adventures
Trekking and cycling tours in Europe, Africa, New Zealand, and Asia. Offers both guided and self-guided tours.
| Delmarva Outdoor Adventure Outfitters
Offers snow goose hunting in Maryland and Delaware, as well as exotic Sika deer, and turkey hunting and other outdoor excursions in Maryland, Delaware, North Dakota, and Washington. Based in Sharptown, Maryland.
Offers trekking and biking trips to Nepal, Pakistan, Central Asia, Africa and South America.
| Freewheeling Adventures
Biking, walking, sea-kayaking, and multisport vacations, with accommodation and dining with van support and guides. Operates in Canada, Europe, and Mexico. Based in Nova Scotia, Canada.
| Fun Adventure
Directory of organizers and guides for a variety of activities, indexed by activity and county. Content in Dutch, French, and English.
| Geographic Expeditions
Offers fixed itinerary and pre-planned tours world wide. Activities include walking, horseback riding, and kayaking. Features photos and trip details.
| Global Adrenaline
Provides customized itineraries globally including hiking, mountain biking, safaris, kayaking, canoeing, and scuba diving. Includes trip details and destination information.