The snorkeling off of "South Sea Island" was the best on our trip. The coral was very brightly colored as well as the fish, especially in the blue part of the spectrum which also featured these indigo starfish. I keep forgetting to get an underwater housing for my camera, so we didn't take any pictures while snorkeling; this picture was taken in a little glass-bottomed boat they had, and edited somewhat to remove the pervasive blue-green tint.