Castillo de Guzmán El Bueno, Fortified tower in Conil de la Frontera, Spain

The Castillo de Guzmán El Bueno, also called Torre de Guzmán, is a fortress in the town centre of Conil de la Frontera. Its square keep, built of local sandstone, stands 17.5 m high on a plan of 7.50 by 7.75 m, with two brick-vaulted chambers and a rooftop lookout ringed by crenellations and corner bartizans. Remains of the sea bastion and the north wall with its cylindrical tower survive.

The castle was built around 1295 by Don Alonso Pérez de Guzmán, called El Bueno, to protect the coast from enemies and pirates. In the late 18th century, around 1784, the building received new decorative details, and after portions were demolished in the 1980s, the tower was restored in 1992 to its earlier appearance.

The castle's tower controlled the almadraba tuna traps along the coast, the region's main economic activity in the late Middle Ages. The Guzmán family held jurisdiction over these fisheries until the monopoly was abolished by the Cortes de Cádiz in 1814. The tower is now used as a lookout over Conil.

The castle is located on a high point in central Conil and is free to enter, making it easy to visit. Arriving early in the morning or later in the afternoon is best to avoid crowds and enjoy views of the town and coast, especially for photography.

The tower's four corners are built with stone chains and interlocking blocks that needed no consolidation until 1992, when the tower was restored. The panels between them were filled with rubble, mortar and stone courses, then plastered and painted. A lower entrance, possibly original, was walled up during that restoration.