Public ferries from Cancún to Isla Mujeres are readily available, but if you're looking for a tour option that allows for swimming and snorkeling, reviewers say this excursion from Cancun Sailing ...

Besides ziplining, you can take an amphibious ATV through the jungle, paddle through an underground river ... day snorkeling ...

What makes Rio Secreto different is that it’s a connected system of cave lakes and an underground river full ... on your first day! Cancun is the perfect place to try out snorkeling for the ...