The cultivation of mussels, oysters and scallops in rafts surage 1945, when the first raft was anchored in the Arousa estuary, and has evolved until today there are more than 2.300, which represents almost 70% of the number of rafts in the entire Galicia.

A punt is a nursery constituiby a flotation system sobre which sits on a rectangular wooden framework from which bivalve ropes hang. The rafts float the length and breadth of the Arousa estuary grouped in different polygons. Thanks to them, it is possible to accelerate the growth process of the bivalves.

One of the main routes for catamarans that depart from the Port of O Grove It consists precisely in seeing a tray up close to show the mussel breeding process.