Snorkeling is fun, safe, and easy aboard the Sundiver III. Join us for a 2.5 hour underwater tour to the shallow, inner, coral reefs located at the "World Famous" Key Largo National Marine Sanctuary, also known as the original John Pennekamp Underwater State Park. Sundiver was founded in 1983 and our captains with over 40 years experience will bring you to the most unique and pristine reefs located inside the Florida Keys Marine Sanctuary. You will be absolutely amazed at the underwater world that lives just offshore of Key Largo. Our friendly crew specializes in kids, families, and first time snorkelers. As long as you can swim, we can teach you to snorkel.