Lanzarote is located north-east of Fuerteventura and just over from La Graciosa. The dimensions of the island are from north to south and from west to east. Lanzarote has of coastline, of which are sand, are beach, and the remainder is rocky. Its landscape includes the mountain ranges of Famara (671 metres or 2,201 feet) in the north and Ajaches () to the south. South of the Famara massif is the El Jable desert, which separates Famara and Montañas del Fuego. The highest peak is Peñas del Chache, rising to above sea level. The Tunnel of Atlantis, the largest underwater volcanic tunnel in the world, is part of the Cueva de los Verdes lava tube.