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Basecamp Explorer Showcases worldwide destinations and philosophy. Includes terms and conditions, and contact details. http://www.basecampexplorer.co.uk/
Crooked Trails Non-profit, community-based travel organization promoting study tours, and village-based cultural exchanges with indigenous peoples in South America, Asia, and Kenya. http://www.crookedtrails.com/
Cross Cultural Journeys Offers travel opportunities for individuals and groups seeking personal and global awareness. http://www.crossculturaljourneys.com/
Discovery Initiatives London agency offers unique holidays, including walking the wilderness trail and wildlife conservation programs. http://www.discoveryinitiatives.co.uk/
Dolphin Charters Rates and schedules for small group wildlife and photography cruises in southeast Alaska, California, Baja, British Columbia, Mexico, the Galapagos and San Francisco. http://www.dolphincharters.com/
DreamWeaver Travel Company Presents itineraries, guidelines, and travel ethics for guided tours to West Africa and South America. http://www.dreamweavertravel.net
Earth Routes Provides worldwide destination and project information with links to travel advisories and home exchange opportunities. http://www.earthroutes.net/
Ecotourism Activity Guide Information on ecotourism with links to associated activities and organizations. http://www.ecotourism-activityguide.com/
Ecotravel.com On-line magazine with directory of operators, lodges, private guides, organizations, and ancillary travel services.. http://www.ecotravel.com/
Ecovolunteer Offer opportunities to help local wildlife organizations with nature protection programs. Information about the organization, destinations, projects and conditions of participation. http://br.ecovoluntarios.org/
Ecovolunteer Information for travellers volunteering to participate in environmental projects worldwide. http://www.ecovolunteer.de/
Environmental Adventure Company Itineraries and guide profiles for wildlife and cultural travel experiences in North and South America. http://www.eactours.com
Footloose Forays Selection of small group educational trips into the natural world, from day trips to three week adventures. http://www.footlooseforays.com/
Green Travel Network Yahoo groups forum with focus on sustainable tourism. http://groups.yahoo.com/group/green-travel/
Hosking Tours Details and itineraries for photographic tours and safaris to a range of destinations. http://www.hosking-tours.co.uk/
International Wildlife Adventures Offering trips around the world to observe and photograph wildlife including polar bears. Led by professional photographers and naturalists. http://wildlifeadventures.com/
Journeys International, Inc. With more than 300 eco-trips to 45 worldwide destinations for nature and culture explorations. http://www.journeys.travel/
La Hesperia Volunteer working programs at La Hesperia biological station and cloudforest reserve in central Ecuador. Includes requirements and conditions, rates, FAQ, and program details. http://www.volunteersecuador.com/
Manaca Ecotravel Offers worldwide tours. Includes destination details with ecological assessment ratings. http://www.manaca.com/
Naturetrek Selection of international tours, treks and cruises guided by British naturalists. http://www.naturetrek.co.uk/
New Jersey Audubon Society Information on North American and International Eco-tours focused on birds and other wildlife. http://www.njaudubon.org/Travel/
One World Journeys Offering expeditions dedicated to connecting people with the planet. Includes schedules, past journeys, and environmental articles. http://www.oneworldjourneys.com/
Planeta.com Virtual library archiving more than 8,000 pages about ecotourism and conservation. Includes contacts and bibliographies. http://www.planeta.com/
Reef and Rainforest Offers educational family adventure holidays worldwide. http://www.familytours.co.uk/
ResponsibleTravel Ethical travel resource providing information about the environmental impact of tourism, respect for local cultures and laws, photography, and banned souvenirs. http://www.responsible-travel.org/
Sustainable Travel International Non-profit organization that supports and promotes ecotourism, through education and outreach. Includes employment opportunities and programs. http://www.sustainabletravelinternational.org/
Tours of Exploration Offers soft adventure, birdwatching, wildlife viewing, natural history, culture, and ecotourism programs worldwide http://www.toursexplore.com/
Voyage of the Wanderbird Operates long distance sailing cruises that provide informal education and interactive wildlife research projects. http://www.wanderbirdcruises.com/
Wildspace Expeditions Personalised Indian and African wildlife tours catering to small private groups. http://www.wildspace.biz/
WildWatch Tours Offer escorted wildlife and photographic tours. Includes destination information, guide profile, and enquiry form. http://www.wildwatchtours.co.uk/
World Primate Safaris Presents destination and accommodation options, suggested itineraries, terms and conditions, and contact details. http://www.worldprimatesafaris.com/
Worlds Together Travel Network Immersion travel and cultural opportunities in Jamaica, Dominica Republic, Belize, and Egypt. Includes destination information and trip reports. http://worldstogethertravel.com/
