EcoTurismo Yucatan - Based in Merida. Provides package and custom tours of the world of the Maya including archaeology, culture, birdwatching, kayak and bicycle tours. [English/Spanish] Rancho Komchen de los Pajaros - Ecouturism ranch in Yucatan ideal to birdwatch, horse-trail and bicycling. Located near the beach and close to Merida, between the most important Mayan circuits. Bluewater Adventures - Offers bear viewing, whale watching, bird watching, nature, and cultural cruises with naturalists in British Colombia and southeast Alaska. Maple Leaf Adventures - Natural and cultural history sailboat cruises throughout Vancouver Island, coastal BC and to Alaska. Information on trips, schedules and amenities. Eco Colors - Offers bird-watching, biking, archeological, diving, and hiking tours in the Mayan world of southeast Mexico. The Snow Goose - Research and natural history cruises in Southeast Alaska, the Inside Passage, and the San Juan Islands. AK Adventures - Rates for tours to view Brown Bears in Alaska. Includes bear facts and behaviour. Nature Trek Canada - Offer wilderness expeditions in Canada and Alaska. Insider - Offers independent tours and in-depth information on Alaska's marine wildlife.