Dive destinations are often divided into reefs and atolls. Most reef diving is done on Belize's northern section, particularly off Ambergris Caye, but head to the atolls for some of the world's greatest diving opportunities. One caveat: the atolls and remote cayes, usually with just one or two small lodges, are far removed from the usual resort amenities such as shops and restaurants.
Unlike some parts of the mainland, the cayes are all about relaxing. "Go Slow" street signs dot the sandy roads, and you spend a lot of time lazing in hammocks or sipping beer in a beachside palapa alongside vacationing Belizeans.
You don't have to don scuba gear to enjoy the colorful fish and psychedelic vistas under the surface of the sea. Some of the best snorkeling in the Caribbean is off the coast of Belize. This is one of the few places in the world where you can swim with (harmless) sharks and stingrays. Jump in a boat for a short ride out to the reef or to patch coral—it all makes the experience that much more exciting.
Because they attract so many free-spending tourists, Ambergris Caye and Caye Caulker have more restaurants than anywhere else in Belize, and some of the best, too. If you love to eat—especially fresh seafood—go to the islands.
While not your typical wide, sandy spreads, they're still classic postcard material, with windswept cocopalms facing expanses of turquoise, green, and purple waters. Some of the best beaches are on small, remote cayes, like South Water. In any case, you'll usually have a front-row seat, because most beach hotels in all price ranges are actually right on the beach.