Despite the constant work to extend the dike (which reached what is now the Moll de Pescadors in 1723), in 1743 the huge amounts of sand that had accumulated finally collapsed the port. An enormous sandbank between the dike's end and what is now Plaça del Portal de la Pau made it necessary to close the port, trapping some of the anchored ships. The beacon in the Moll de Pescadors dock, was built a little later, in 1772.