The Castle of Guzmán el Buenowas was built in 960 AD. by the Caliph Abderramán III on the ruins of a possible Roman military camp. It was strategically sited for the control of the communication routes between Africa and Europe, being in the narrowest point of the Strait of Gibraltar. The facade, designed by the architect Torcuato Cayón in the 17th century, is neo-classical. The current walls that enclose Tarifa are the result of several construction phases and restorations, the most important accomplished in the 18th century, when the city was converted into a military base during Spains attempt to recapture Gibraltar. Tarifa is a paradise for the nature lover. The nearby Nature Park Los Alcornocales is the worlds biggest cork forest, from where you can enjoy unspoiled views to the African Continent, only about 14 km away. It offers opportunities for many outdoor activities, including: bird watching, biking, horse riding, or simply enjoying the beautiful landscape in Europe's most extensive Mediterranean woodlands. The 'Cueva del Moro' is without doubt the most important cave in Tarifa. The palaeolithic carvings of this cave, discovered in Spring 1995 by Lothar Bergmann, origin from the Solutrean civilisation which dates back more than 18,000 years. Large figures, mostly of equine animals are carved into the rock. The weather is one of the most famous product of Tarifa. The wind blows almost all year round making it one of most famous destinations for windsurfers in the entire world.