Jamaica offers diverse scuba diving experiences with coral reefs, shipwrecks, wall dives, and marine life like sea turtles and sharks. The cost varies, with single dives around $70-$100 and certification courses up to $500. Best dive sites include Falmouth, Negril, and Ocho Rios. The dry season (December to April) is optimal, with clear waters and warm temperatures. Resorts like Beaches and Sandals offer on-site PADI dive shops for guests.