Foz do Arelho is a beach about 10 km from Óbidos, Caldas da Rainha and S. Martinho do Porto.
It's a place where most of the people generally is passing by, because there's not much lodging in the area: a three star Hotel, a camping and Inatel - a vacation club for portuguese workers.
Foz do Arelho combines perfectly a rough sea wit a calm lagoon. It's your choice!
Good surf and a wide beach attract many surfers and swimmers. I don't know why, but body board dominates this beach, while surf goes mainly to Peniche area. If I convince Tito to write something, maybe he will explain.
He is one of the surfing lovers.
Equipment: Surfoz has shops in several places in the coast, including Foz do Arelho.