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; you can 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 get frightened or need a rest, the raft is right there, ready to support you.
Snuba Big Island. Rendezvous with your instructor at the beach rental area near the swimming pool at King Kamehameha's Kona Beach Hotel in Kailua-Kona. A 30-minute class and a one-hour dive from the beach is $89 per person. Boat dives lasting three hours leave from Honakahou Harbor start at $145 per person. Kids aged four to seven can come along on the Snuba Doo program, which keeps them snorkeling safely on the surface. King Kamehameha's Kona Beach Hotel, 75-5660 Palani Rd., Kailua-Kona, HI, 96740. PHONE: 808/324-1650. www.snubabigisland.com.