Snuba
Snuba—a cross between scuba and snorkeling—is a great choice for non-scuba divers who want to go a step beyond snorkeling. You and an instructor dive off a raft attached to a 25-foot hose and regulator, allowing a dive as deep as 20 feet or so. This is a good way to explore reefs a bit deeper than you can get to by snorkeling. If you need a break, the raft is ready to support you.
