One of the reasons so many people join us on our snorkel adventures in Marathon is because Sombrero Reef is only 2 to 30 feet deep, so it can be thoroughly enjoyed without any fancy diving gear. Located in the Atlantic Ocean only six miles from Marathon’s shores, it’s easy to access and makes for an enjoyable ride where dolphins, turtles, and stingrays are often spotted en route. CONTACT INFORMATION Google+: https://www.google.com/maps?cid=15160230537485041821 Website: https://www.starfishsnorkeling.com Phone: (305) 481-0407 Address: 1248 Overseas Hwy, Marathon, FL 3305