How to Do Florida: Coral Reef Snorkeling in the Keys

    By How to Do Florida

    Just off the Florida Keys you'll find the Florida Reef — the only living coral barrier reef in the United States, and the third-largest in the world. Home to the Florida Keys National Marine Sanctuary, the reef hosts more than 6,000 aquatic species. Snorkeling on Looe Key's shallow green-blue waters doesn't require any special equipment or training, and you'll leave a different person from who you were coming in.  

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