Warm weather, crystal-clear waters, and an eclectic cultural scene offer year-round fun.

Hear me out – this might sound crazy, but the best seafood in Miami is not actually in Miami. It’s four hours south in a funky, free-spirited, and totally unforgettable little island called Key West.

Dave Seminara lives in St. Petersburg, Fla., and enjoys exploring the Keys. Why did Key West, a city of 25,000 at the marshy tip of Florida, attract 4.6 million visitors last year? There are no theme ...