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Sian Ka'an Biosphere
The Sian Ka’an Biosphere Reserve was established on the 20th of January 1986 by presidential decree (under President Miguel de la Madrid Hurtado) and became part of UNESCO’s Man and the Biosphere (MAB) program that same year. Sian Ka’an is approximately 1.3 million acres in size and spans 120 kilometers from north to south (comprising almost one third of the Caribbean coast of Mexico). In 1994 an area of over 200,000 acres to the south of the Reserve was named a Protected Area of Flora and Fauna of Uaymil, increasing the continuous area of protected land. This eco-park offers a number of tours, fly fishing, kayaking and more. Sian Ka’an Facts Largest protected area in the Mexican Caribbean (approximately 1.3 million acres) Established January 20th 1986 as part of UNESCO’s Man and the Biosphere Program UNESCO World Heritage Site Unique for its geography and wetlands 23 known archaeological sites (with relics dating back to 2,300 years old) 103 known mammal species 336 known bird species Nesting ground for many species of wading birds Annual rainfall between 44 and 48 inches Important nesting site for two endangered sea turtle species Believed to be inhabited in the Pre-Classic and Classic Periods in the chieftanships of Cohuah and Uaymil Currently home to over 2,000 inhabitants Read a trip report about Sian Kaan and Muyil. Read about Xamach Dos located in Sian Kaan. View photos from Oct '06 trip to Sian Kaan.
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	Aktun Chen Dry caves, cenote and animals.
	Hidden Worlds At Hidden Worlds they specialize in giving their visitors an adventure, not just another dive or tour.
	Selvatura The longest zip line in North America and , trek bikes and cenote.
	Xcaret The largest amusement park on the coast.
	Xel-Ha Lazy river, snorkeling, beach access, cenotes and more.

Sian Ka'an Biosphere