All the big-name international brand car hire companies are represented in Florida Keys, plus several good local ones, too, and you can rent cars from several places. The international airports of Miami, Key West and Marathon offer perhaps the biggest choice.
The Overseas Highway: A Road over Ocean
The Overseas Highway is an architectural marvel and one of only 30 All-American Roads. It is the southernmost part of US Route 1 Highway and follows the path of the original railroad that once connected the islands.
Driving the Overseas Highway is one of the true highlights of a trip to Florida Keys. You will cross vast stretches of blue seas, and pass tangled mangroves, vibrant resorts and little harbours to stop off for lunch or a wander. While Seven Mile Bridge in Marathon is probably the most famous section of the Overseas Highway, almost every stretch opens up impressive sunsets and views and, if you hire a convertible car, a real wind-in-your-hair experience.