Bermuda's oldest and largest full-service scuba-diving operation offers introductory lessons and half-day dives for between $120 and $185. Daily one- and two-tank dive trips cost $80 and $120, respectively. Snorkeling trips are $50. Full certification courses are available through PADI, NAUI, and SSI. Equipment costs extra, and reservations are required. The outfitter offers underwater scooters called DPVs or "diver propulsion vehicles." This exciting vehicle takes adventurers through underwater caves and canyons. Who knows? You may even discover a shipwreck from long ago.