La Bocayna or La Bocaina (Spanish: Estrecho de la Bocaina) is a sea strait that separates Lanzarote from Fuerteventura in the Canary Islands. The island of Lobos is situated on the southern side of the strait, close to Fuerteventura.
In the 19th century, the strait was known as a safe anchorage with a sandy bottom, which shelved gradually towards Lanzarote with depths of up to five fathoms. The shore around Lobos was less hospitable, being ‘foul and rocky’. A steady trade wind could be found in the strait, although it was blocked by the hills of Lanzarote, becalming ships that were in their lee, tacking towards Lobos was needed to regain the wind.