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Sagitario, Tulum, Q.R., Mexico
+52 984 871 2499
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Sian Ka'an Biosphere Tulum  Mexico

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Mon - Fri 8am - 4pm
Sat 8am - 2pm

Sian Ka'an Biosphere

Located near the Maya ruins of Tulum, Centro Ecologico Sian Ka'an (CESiaK) is a nature lover's paradise.

Designated a UNESCO World Heritage site and established in 1986 as part of UNESCO’s Man and the Biosphere Program, it is the largest protected area in the Mexican Caribbean with approximately 1.3 million acres.

Meaning "where the sky is born," in Maya, Sian Ka'an offers guided tours through mangrove-surrounded rivers, sport fishing, bird watching, snorkeling, and various archaeological sites dating back 2,300 years.