The coast road south of the Tulum “hotel zone” leads to the entrance of the Sian Ka’an Biosphere Reserve. Straddling northern and central Quintana Roo, this UNESCO World Heritage Site comprises 1.3 million acres of jungle, marsh, mangrove forest, Caribbean beaches and a 110-kilometer-stretch of coral reef, all of which are rich in flora and fauna. The biosphere reserve was established by government decree in 1986 to protect these incredibly fragile ecosystems.
Sian Ka’an, which means “where the sky is born in Maya,” is home to 103 different mammals and over 350 resident and migratory species of birds, including herons, ibis, roseate spoonbills, wood storks and frigate birds. The reserve also has a large breeding population of ospreys and protects a tiny colony of the rare jabiru stork, the largest bird in the Americas.
Getting there: A day trip to Sian Ka’an gives you the opportunity to visit at least two of the reserve’s 23 archaeological sites, Muyil and Xlapak. You’ll also get an overview of the reserve’s jungle and wetland ecosystems and take a boat ride through the lagoons to see the birds.