Near the southern end of Belize, the snorkeling at Sapodilla Cayes Marine Park is known to be exceptional. The Sapodilla Cayes Marine Park is located 40 miles offshore of Punta Gorda. The 14 sandy isles of Sapodilla make up the elbow of the Mesoamerican Barrier Reef as it bends toward Honduras. While snorkeling in the Sapodilla Isles of the Sapodilla Cayes Marine Park, you will find spur and groove type coral formations that include elkhorn coral along the seaward side of the islands and on top of the reefs. Snorkelers commonly see rays, nurse sharks and turtles. Keep an eye out for the hawksbill sea turtles, especially near Hutting Caye; it is a high coral sand beach in the shape of a half moon lines the eastern shore.
The outer portion of the Sapodilla Cayes Marine Park is characterized by shallow water reefs which occur as a fringe around the cayes. The depth of water over these fringing reefs is often less then 15 feet, and some of them are exposed at low tides. The drop off east of the islands is gently sloping, in contrast to the near vertical walls further north and surrounding the outer coral atolls.
Lime Caye is frequently crowded by boatloads of tourists from Livingston. Frank's Caye and Nicholas Caye both have basic accommodations. Kayaking is a great way to explore each island. To reach the snorkeling in Belize by air, fly into Belize City International Airport (BZE) which is located west of Belize City. Since there are few hotels near the airport and the airport is pretty far from the sketchy Belize City, you will want to arrive as early in the day as possible to meet your connection. There are two small inter-island airlines that serve many other destinations off-shore of Belize. Note, even if you reserve a specific inter-island flight at a specific time, only after you check-in with the inter-island carrier are you really assigned to an actual flight at an actual time. While there is a ferry service from downtown Belize City to some islands, there are only informal taxis (in personally owned vehicles) from the airport along slow roads thru run-down neighborhoods to the ferry dock, which is located in a very sketchy area. Hence, the ferry service does not tend to be a very popular option with tourists. When you are departing from Belize, the departure tax is included in the airline ticket, but make sure to verify.
Overall, Sapodilla Cayes Marine Park is the 3rd most popular snorkel dive spot of all 33 snorkeling dives in Belize.