What to know
Overview
Quintana Roo is Mexico's Caribbean coast: Cancún, Playa del Carmen, Tulum, Cozumel, Isla Mujeres and Holbox, with the Bacalar lagoon down south near Chetumal. A reef runs offshore along much of it, which is why the water is so often calm and good for snorkeling. Inland there are cenotes (flooded sinkholes) and Maya sites like Tulum and Cobá. Sargassum seaweed can pile up on the beaches from spring into late summer; how much varies a lot from year to year.


