Montalvo Beach, White sand beach in Sanxenxo, Spain

Montalvo Beach is a straight, 1,000-metre-long beach in Sanxenxo, on the Ría de Pontevedra, with fine white sand forming gently sloping dunes and sparse vegetation. It is bordered on the left by Punta Montalvo, a natural promontory and viewpoint, and on the right by the lower Punta Paxariñas, which separates it from Paxariñas beach. Its width varies from 80 metres at low tide to 20 metres at high tide, and it has a boat mooring area.

The sources record no documented historical events for the beach or its headlands; the name Montalvo is shared with the parish and the Punta Montalvo that closes the beach on its left. The beach lies in the municipality of Sanxenxo, on the Ría de Pontevedra, facing the Ons and Onza islands of the Atlantic Islands of Galicia National Park. Access today follows the PO-308 road towards O Grove, turning left at Montalvo.

Montalvo Beach faces the Isla de Ons and the Isla de Onza, both within the Parque Nacional de las Islas Atlánticas de Galicia. The beach holds a Blue Flag, and its mooring area is used by boats anchored off the sand. Punta Montalvo, the promontory at its left end, serves as a natural viewpoint over the ría.

Access from Sanxenxo is via the PO-308 road towards O Grove; in Montalvo a left turn leads down to the beach. The sand runs about 1,000 m long, with a width of roughly 80 m at low tide and 20 m at high tide. The beach is open and windy with moderate waves, and it has a mooring area for boats. It faces the Islas de Ons and Onza of the Atlantic Islands of Galicia National Park.

Montalvo Beach faces the Isla de Ons and the smaller Isla de Onza, both within the Parque Nacional de las Islas Atlánticas de Galicia. The beach holds a Blue Flag award. It also has a designated mooring area for boats, so small craft anchor just off the sand.