This north-facing crag is an excellent addition to the Calp area crags. It is situated high above the N332, just past the Mascarat tunnels on the approach to Calp. The Castellet de Calp is the remains of a watchtower that served to prevent Berber pirate assaults. These days the walls below it have been developed to give a great set of routes in the mid-to-hard grades. They offer a shady retreat in hot weather, something in short supply in this area. The routes tend to be vertical or gently overhanging on reasonable rock, although there are some loose sections. Several routes have been extended upwards to give superb pitches higher up on the walls.