Skip the crowded glass-bottom boat tours and book the Luxury Reef and Nylon Pool adventure instead. The coral is decent, but the real play is wading waist-deep in the middle of the ocean at the Nylon Pool—the water is unreal. Go early to beat the midday sun and cruise ship rushes. Two hours is enough to get your snorkel fix and a rum punch. Don't pay for extra gear if your boat provides it.
