Isla Mujeres is a small island about 8 miles off the coast of Cancun — a 20-minute ferry ride that feels like a different world. The pace slows down, the water gets clearer, and the wildlife gets closer. The name translates to “Island of Women,” but the real residents are sea turtles, tropical fish, and the whale sharks that visit every summer.

It’s one of the best day trips from Sandos Cancun, and the Seek & Go desk can set up the ferry and tours from the resort.

Cozumel is a 30-mile long island off the coast of Playa del Carmen, and it has some of the clearest water in the Caribbean. Jacques Cousteau put it on the map in the 1960s when he declared the reef system one of the best diving sites in the world. The marine life hasn’t disappointed since.

If you’re staying at Sandos Caracol or Sandos Playacar in Playa del Carmen, Cozumel is a 45-minute ferry ride or a quick Seek & Go excursion from the resort lobby. It’s the single best day trip for anyone who wants to see underwater wildlife up close.

The Mesoamerican Barrier Reef runs the length of the Riviera Maya — from Cancun south past Tulum and into Belize. It’s the second-largest reef system in the world and it starts less than a mile from the beach at most Riviera Maya resorts. That means world-class snorkeling is a walk-in from shore, not a boat expedition.

Whether you’re snorkeling off the beach at Sandos Caracol, taking a Seek & Go excursion to the reef, or doing a full day at Cozumel, here’s what you’ll see underwater.

Snorkeling in the Riviera Maya — Complete Guide

The Riviera Maya sits along the Mesoamerican Barrier Reef — the second-largest coral reef system in the world, stretching from the tip of the Yucatán Peninsula down to Honduras. Add thousands of freshwater cenotes, natural inlets, and protected marine parks, and you have some of the best snorkeling on the planet.

Here’s every way to get underwater during your Sandos vacation, from all-day water parks to guided reef expeditions to cenote cave swimming.