Juan de Nova Island (French: Île Juan da Nova (official), Île Juan de Nova (local)), also known as Saint-Christophe, is a French 4.4 square kilometres (1.7 sq mi) low, flat, tropical island in the narrowest part of the Mozambique Channel, about one-third of the way between Madagascar and Mozambique. Anchorage is possible off the northeast of the island which also has a 1,300 metres (4,300 ft) airstrip. Administratively, the island is one of the Scattered islands in the Indian Ocean, a district of the French Southern and Antarctic Lands. The island is garrisoned by French troops from Réunion and has a weather station.