Salt pans of la Ràpita Curiosity · Sant Carles de la Ràpita, Montsià, Tarragona The salt flats of Sant Carles de la Ràpita, known as the Salines de la Trinitat, occupy the Punta de la Banya, next to the Alfacs bay, and with about 1,000 hectares are the largest in the Ebro delta. Their origin dates back to around the 14th century, although salt production was already significant in Arab times, as recorded in the Tortosa charter of settlement of 1149. In 1869 Isabella II granted its administration in perpetuity to a mining company, and in the 1960s it came to account for almost 4% of national salt production. Declared a Bien Cultural de Interés Local (a heritage protection designation at local level) in 2014, they are today the only active salt flats in the delta and preserve salting ponds, dwellings, offices and an old wooden pier dating from around 1905. Photo: Pere López (CC BY-SA 3.0) What to see and do in Sant Carles de la Ràpita