The Overseas Highway — 210 km of bridges hopping between islands, including the 11 km Seven Mile Bridge with open ocean on both sides.
US-1 south turns into the Overseas Highway once you cross into the Keys.
The first and largest of the Keys — a good stop for snorkeling the only living coral reef in the continental US.
Known as the sport-fishing capital of the world.
The Seven Mile Bridge starts just south of here — the most dramatic stretch of the drive.
The southernmost point in the continental US, and a genuinely different pace of life.