Offers worldwide snowboarding, skiing, surfing, mountain biking, rock climbing, and kayaking trips with instruction. Includes testimonials, trip descriptions, and rate information.

Organizers 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.

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.

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

Customized private adventure tours of Alaska. Catering to small groups and families. Air tours, back country expeditions, wildlife safaris, National Park and glacier tours.

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 hunting trips to Texas, Alaska, Arizona, Mexico, Colorado and New Mexico and fishing in Mexico in Cabo San Lucas, Cancun, Mazatlan, Lake El Salto, and East Cape.

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

Customized trips including polar bear safaris, white water rafting and mountain climbing. Includes photo gallery, currency exchange and library.

Offers custom and fixed itineraries including trekking, climbing, skiing, kayaking, and biking worldwide. Includes details for fixed itinerary trips.

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

Offers fishing, canoeing and canoe camping, moose photography, grouse hunting and camping, and duck hunting trips. Registered Maine Guide based in Greenville, on Moosehead Lake, and serving in the Maine wilderness from Mt. Katahdin to the Allagash.

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.

Directory of organizers and guides for a variety of activities, indexed by activity and county. Content in Dutch, French, and English.

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

Provides customized itineraries globally including hiking, mountain biking, safaris, kayaking, canoeing, and scuba diving. Includes trip details and destination information.

Features listings of adventure companies worldwide. Browse by category or by destination. Provides a newsletter and lists travel bargains.

Offers hunting, fishing, and scuba diving tours worldwide. Includes pricing and trip details.

Runs hunting, fishing, and photography trips worldwide. Includes downloadable catalog and online specials.

Non-profit company offers small group tours of Asia, and North and South America. Activities include trekking, white water rafting, biking and climbing. Based in Berkshire, England.

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