Sunken boats, whether they got there naturally or deliberately to comply with a biotopic function, are a great attraction for divers because of their evocative power.

On the Costa Brava, there are some well-known wrecks such as the Boreas, near Palamós, the Reggio and the Marmoler on the Costa del Montgrí, and the Llanishen and the Tregastel in the Cap de Creus area. Many of them are accessible for medium level divers and even for beginners, as they are not very deep and are in protected areas. However, others require expert divers and some of them are extremely technical, such as the Saint Prosper.