Best Underwater Photography 1. Grand Cayman, Cayman Islands 2. Belize Atolls 3. Exumas, Bahamas 4. Riviera Maya, Mexico (pictured) 5. St. Croix, U.S. Virgin Islands eastern side of the Yucatan Peninsula, ramble down coastal Highway 307 through Quintana Roo to some of the best dive sites in Mexico. Playa del Carmen world-class drift diving at Palancar Reef & Columbia Wall , plus bull-shark dives. It is also reach remote Chinchorro Banks. Freshwater caverns scubadiving.com/rivieramaya