Discover and enjoy the exotic natural beauty of the Sian Kaan Biosphere Reserve. Declared a World Heritage Site by UNESCO in 1976 for being the natural habitat of over 385 bird species and 103 marine species in danger of extinction, this is one of the wildest area of Riviera Maya. Get in direct contact with nature with the boat tour in the lagoon and snorkel on the reef, in the crystal-clear waters of this wonderful paradise. Read our travelers experiences !!