Sian Ka'an is a biosphere reserve in the state of Quintana Roo, Mexico. It is a Mexican national park since 1986 and a UNESCO World Heritage Site since 1987.
Part of the reserve is on land and part is in the Caribbean Sea including a section of coral reef. The reserve has an area of 5,280 km².
The reserve also includes some 23 known archaeological sites of the Maya civilization.
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Last updated: 05-24-2005 03:46:29