Scuba Diving, Snorkeling & Other Outdoor Pursuits -- The best dive operation in Guánica is Sea Venture Dive Copamarina (tel. 787/821-0505, ext. 729), part of the Copamarina Beach Resort. Copamarina has a long pier where fishing is permitted and a 42-foot (12.6m) Pro Jet dive boat. Guánica is one of the Caribbean's best areas for day and night dives. A two-tank dive costs $95, with full diving equipment. You can also rent snorkeling gear. Whale-watching excursions can be arranged from January to March at the hotel's tour desk, which also offers ecotours, kayaking, deep-sea fishing, and sunset sails. Horseback riding and sunset biking are also available.