Ría of Navia Nature · Navia, Eo-Navia, Asturias The Navia river widens into a ría of calm waters before reaching the sea, with the town on one bank and the port of Ortiguera guarding the mouth; it is the final stretch of a river that flows down dammed from the Salime reservoir. Its sheltered waters have historically served as a safe harbour, a trade route and a fishing ground, which favoured the appearance of settlements in its surroundings since ancient times; since 1958 it has hosted every August, unless the tide prevents it, the Descenso a nado de la Ría de Navia (swimming descent of the Navia ría), an event declared of Interés Turístico Nacional (a national tourist-interest designation). Photo: Freecat (CC BY 2.0) What to see and do in Navia