Peniscola is a very popular town in the summer. With its superb position surrounded by sea on three sides, its castle, its medieval walls and its winding streets lined by white houses, it is a lovely town to visit.The old town is entered through one of two gateways through the medieval walls. The Fosch Gate is by the Plaza del Caudillo and was the main entrance into the city until the 18th century. The Porteta Gate leads to the old town from the harbour. Look out also for the Saint Peter's Gate leading from the sea to the castle.The castle is Peniscola's main sight. It was built in the 13th century by the Knights Templar on the foundations of an Arab fortress. It was used for the 1961 filming of El Cid. In fact the highest battlements were added on specifically for the film! On the door of the castle is a cross carved by the Knights Templar. The castle is cheap to visit and offers great views over the town and sea and a visit to the enormous guards quarters.