Like all of the Andalusian castles the remains of the original construction are Roman, with the over lay of Moorish additions, but the Roman construction is the impressive part built in the 1stC BC. The work that was needed to complete fortifications like this over 2,000 years ago is quite staggering. The 360' view from the top is stunning - spanning from the Grazalema mountains past Jerez to Cadiz, and along the coast to Tarifa. Great photo ops at every turn! Good explanation boards in Spanish & English are placed at intervals on the path round the castle.