Snorkel Sombrero Lighthouse, the third largest reef in the world and the only one in the Continental United States. A 30 acre National Marine Sanctuary filled with endless tropical species, corals and sea fans. This will be the best thing you do in the Florida Keys. For over 20 years Starfish has been operating this unforgettable tour. We accommodate all ages, offer children pricing and include all snorkeling equipment. Join us for the best activity in the Florida Keys!