The best diving on Lighthouse Reef is at Half Moon Caye Wall, a classic wall dive. Half Moon Caye begins at 35 feet and drops almost vertically to blue infinity. Floating out over the edge is a bit like free-fall parachuting. Magnificent spurs of coral jut out to the seaward side, looking like small tunnels; they're fascinating to explore and invariably full of fish. An exceptionally varied marine life hovers around this caye. On the gently sloping sand flats behind the coral spurs, a vast colony of garden eels stirs, their heads protruding from the sandlike periscopes. Spotted eagle rays, sea turtles, and other underwater wonders frequent the drop-off. The island named Half Moon Caye is managed by the Belize Audubon Society. It is famous for its colony of Red-footed Booby birds that numbers about 4,000.