This area is famous for the Grotta dell'Acquasanta (Holy Water Cave), a cave with unique water, venerated since Phoenician times, who were the first to discover its curative properties and to make the area a place of worship. Legend has it that it was in this cave that an image of the Madonna and Child was found in 1022. This image attracted so many pilgrims that it was decided to build a church called Madonna dell'Acquasanta, in honour of the underground spring capable of performing prodigious miracles. It is said that the image of the Madonna on the main altar never deteriorated and that the colours did not fade despite the passage of time and the proximity of the sea. Unfortunately, this work has been lost.