South Beach, Key West

If you find yourself somewhere on the south end of Duval Street, exhausted by the heat and longing to escape to the water, try this tiny beach. Despite its name, this strip of sand bears no resemblance whatsoever to the famed South Beach of Miami Beach, but it has its own delights on a hot day. Parking is a problem around this small but popular area, so if you're staying in a nearby resort, it's best to walk. You can also walk to a number of restaurants in the vicinity.