Chapel of San Caralampio Monument · O Grove, Salnés, Pontevedra A chapel on the island of A Toxa built in 1909 by Daniel Vázquez-Gulías and clad entirely, around the middle of the 20th century, in scallop shells to protect it from the damp; it is known as the capela das cunchas. Photo: Luis Miguel Bugallo Sánchez (Lmbuga) (CC BY-SA 4.0) What to see and do in O Grove