Snorkeling with Whale Sharks off of Cancun, Mexico Whale Shark: photo by Cherilyn Jose Read about my once-in-a-lifetime opportunity to snorkel with Whale Sharks off of Isla Mujeres/Isla Contoy near Cancun, Mexico. Related posts: Whale Shark Snorkeling off of Cancun, Mexico Interview With Dr. Deni Ramirez Macias, Whale Shark Researcher The Real Sharks (and Fish!) from Finding Nemo Hammerhead Sharks at Cocos Island