Castillo de San Buenaventura is a 18th-century defense tower situated in Caleta de Fuste on the island of Fuerteventura in the Canary Islands, recognized as a historic-artistic monument in 1949. Commissioned by military engineer Claudio de L'Isle to protect against pirates from North Africa and Europe, the tower features a vault supported by a central pillar, a rooftop bartizan, water cistern, and iron cannons. Visitors access the fortress via a stone staircase with a drawbridge, and its strategic waterfront location near the marina offers visitors insight into the archipelago's maritime defensive heritage.
