Hiking through the Beyos Gorge, León

Hiking through the Beyos Gorge is one of the most unique experiences in the Cantabrian Mountains: 10 kilometres of walking through a limestone canyon where the Sella River has carved walls up to 700 metres high. The route largely follows the GR-202, which traces the ancient transhumance path used for centuries by shepherds moving their flocks between the National Park's high pastures and winter valleys. The trail runs alongside the Sella riverbed, crossing at several points via walkways and stone bridges, with side waterfalls and spectacular geological formations throughout. In the calmer pools it is possible to see salmonid trout swimming. The route can be done point-to-point (Oseja de Sajambre to Besande in Asturias, 10km) or in shorter sections entering the gorge and returning.