⭐ Every Key West tour on GetYourGuide, compared in one place
The reef off Key West is the only living coral barrier reef in the continental United States, and it is the reason most boats leave the harbour at all. The nearest sites sit roughly ten to eleven kilometres out – Sand Key to the southwest, the Eastern Dry Rocks to the southeast – which means forty minutes to an hour under way before anyone gets wet. At some spots the coral comes within about a metre and a half of the surface, so you float rather than dive.
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