Hop On Hop Off in Key West for one full day of an adventure. Enjoy a early morning or afternoon 3 hour Snorkel trip on a catamaran. Explore the world’s 3rd largest living coral reef. This trip is perfect for professionals and beginners. Our professional staff provide expert snorkeling instruction and equipment. Afternoon Snorkeling includes unlimited draft beer, mixed well drinks, margaritas, rum runners, wine or champagne, once completed with snorkeling.