Overseas Highway
No admission feeDrive 113 miles of US 1 from Key Largo to Key West, hopping island to island across 42 bridges over open water.
Transit: reachable by public transit

Photo: Divingenthusiast2005, CC BY-SA 4.0, via Wikimedia Commons. Cropped and resized.
A Florida Keys museum devoted to the story of underwater diving, with a focus on South Florida and the Keys.
82990 Overseas Hwy, Islamorada, FL 33036 · Islamorada, FL
Located on the Overseas Highway in Islamorada, this nonprofit museum preserves and displays the history of diving. Its collection includes vintage diving gear and a notable set of diving helmets. The museum gives particular attention to the role South Florida and the Florida Keys played in diving history. It also runs educational programs, guest lectures on marine topics, and group tours.
The closest stops to History of Diving Museum, ordered by straight-line distance. A few more like it, plus some different kinds of fun so you can build a full day.
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Transit: reachable by public transit
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