The Lagos de Covadonga are two glacial lakes sitting at about 1,100 metres in the western massif of the Picos, connected by walking paths and surrounded by high mountain meadows where cattle and horses graze freely. Lago Enol, the deeper and larger of the two, reflects the limestone peaks above it on calm mornings. Lago Ercina is shallower and fringed with wetland vegetation.
The lakes are reached by a narrow road from the Covadonga sanctuary (8 km). In summer, this road is closed to private vehicles due to congestion; shuttle buses run from a car park at Buferrera. A circular walking route of about 5 kilometres connects the two lakes and several viewpoints — this is an easy and highly rewarding half-day walk. More ambitious hikers continue from the lakes onto the high-altitude paths of the Western Massif, where the landscape becomes genuinely Alpine. The Entrelagos viewpoint between the two lakes gives the finest overview of the whole setting.