Barra Airport is the only airport in the world where planes land on the beach. It is situated on the wide beach of Traigh Mhor, on Barra island, in the Outer Hebrides, Scotland. If you want to fly here commercially you will want to book with British Airways, which flies to Barra from Glasgow and Benbecula.
The airport is literally washed away by the tide once a day, and if you arrive on a late afternoon flight, you may notice a couple of cars in the parking lot with their lights on, which provides pilots some added visibility, since the airport is naturally lit. Needless to say you probably don't want to hang out at Barra Airport beach, unless you are a aviation junkie, in which case Barra Airport has a fool proof system, as sign that reads: "Keep off the beach. When the windsock is flying and the airport is active."