Church of San Xoán de Leiro Monument · Ribadumia, Salnés, Pontevedra The parish church of Leiro, which preserves a horseshoe arch of the pre-Romanesque period, reused in the eighteenth-century remodelling; it is the oldest element in the religious heritage of Ribadumia. Photo: Estevoaei (CC BY-SA 4.0) What to see and do in Ribadumia