Barra Airport, first opened in 1936, is situated in the wide shallow bay of Traigh Mhor at the north tip of the island of Barra in the Outer Hebrides, Scotland. The airport is unique, being the only one in the world where scheduled flights use a beach as the runway. The airport is operated by Highlands and Islands Airports Limited, which owns most of the regional airports in mainland Scotland and the outlying islands. The beach is set out with three runways in a triangle, marked by permanent wooden poles at their ends, in directions 07/25, 11/29, 15/33. This almost always allows the Twin Otters that serve the airport to land into the wind. At high tide these runways are under the sea: flight times vary with the tide. Emergency flights occasionally operate at night from the airport, with vehicle lights used to illuminate the runway and reflective strips laid on to the beach. Continue reading for more.