Calpe (or Calp in Valencian) is a coastal town located in the comarca of Marina Alta, in the province of Alicante, Spain, by the Mediterranean Sea. It has an area of 23.5 km² and a population density of 855.45 persons/km². The town is located 67 km from the city of Alicante, lying at the foot of the Natural Park of Peñón de Ifach, (Ifach Rock). The economy of Calpe is mainly based on tourism and fishing. Many Iberian, Roman and Arab archeological sites exist in the town, due to its strategic coastal location. Some of the most important monuments in Calpe are the ruins of Los baños de la Reina, (the queen's baths), the flooded salt flats, a bird sanctuary for migratory birds, its Gothic Catholic church and the tower of La Peça, dating from the 18th century.