Bacalar Chico National Park & Marine Reserve
Development on Ambergris continues relentlessly, but most of the far north of the island remains unsullied by that development. At the top of the caye, abutting Mexico, this UNESCO World Heritage Site spans almost 44 square miles (113 square km) of land, reef, and sea. Here, on 11 miles (18 km) of trails you may cross paths with whitetail deer, ocelots, saltwater crocodiles, and, according to some reports, pumas and jaguars. There are beautiful diving, snorkeling, and fishing opportunities, especially off Rocky Point, and a small visitor center and museum to get you oriented. You'll need a boat and a guide to take you here, where there are at least nine ancient Maya sites. Walk carefully, as loggerhead and green sea turtles nest here. Be sure to bring insect repellent. An all-day snorkel trip to Bacalar Chico from San Pedro is unforgettable.