Diving Snorkeling Florida Keys - Lonely Planet Diving and Snorkeling Guides Author:William Harrigan A 107-mile ribbon of highway spans the lime-green waters and more than 200 islands that comprise the Florida Keys. Just offshore, a necklace of dive sites parallels the archipelago. Divers have easy access to shallow reefs and spectacular wrecks, such as the Adolphus Busch Sr. or the U.S. Coast Guard cutters Duane and Bibb. ... more »Visitors to the Keys can swim with dolphins, celebrate the sunset or stay in an underwater lodge. This book describes 61 of the best sites in the region, from Biscayne Bay to the Dry Tortugas, with full-color photos throughout. You'll get specific information on: