Organizers of hiking, biking, riding and rafting expeditions around the world. Works with charities, companies, and private groups. Based in London, England.

Offers trekking, snow-shoeing, and multi-activity trips in Chamonix, the Alps, Tunisia, and Peru. Based in Chamonix, France.

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.

Walking and cycling tours in Europe and California. Offices in Santa Cruz, California and Switzerland.

Offers over 150 distinctive bicycling, hiking, walking, and multisport vacations worldwide.

Trekking and cycling tours in Europe, Africa, New Zealand, and Asia. Offers both guided and self-guided tours.

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.

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.

Offers fixed itinerary and pre-planned tours world wide. Activities include walking, horseback riding, and kayaking. Features photos and trip details.

Offers fixed and custom itineraries for sea kayaking, cycling, backpacking, and mountaineering worldwide. Includes trip and destination details and pricing.

Provides whitewater rafting, trekking, and fishing trips in Russia, Siberia, and the United States. Offers river information and contacts.

Specialist travel company with particular expertise in shooting, fishing, safaris and Latin American travel.

Whitewater rafting, abseiling, kayaking, canyoning, and bridge swinging in Scotland, Morocco, Chile, Ethiopia, Australia, and Turkey.

Offers hiking and biking tours in Europe, Africa, South America, and the Himalayas. Based in Wandsworth, UK..

Information about expeditions for pupils. Activities include field work, white water rafting, kayaking, mountaineering, mountain biking and trekking in places like Kenya, Peru, Canada, Tibet, Australia and Iceland. Based in West Yorkshire, England.