Cares Trail, Hiking trail in Picos de Europa National Park, Spain.

Cares Trail is a hiking path cut into the grey limestone of the Cares gorge in Picos de Europa National Park, running about 12 km between Poncebos in Asturias and Caín de Valdeón in León. It follows the line of a canal built for the Camarmeña-Poncebos hydroelectric plant, at mid-height on near-vertical walls above the river. A short metal truss bridge with green railings spans a gap in the rock.

The path was cut into the rock between 1915 and 1921 to build and maintain a canal feeding the Camarmeña-Poncebos hydroelectric plant, inaugurated in 1921. About 500 people, many of them Galicians and blasting specialists, worked on the canal and path, and 11 died in accidents, mostly falls. Between September 1945 and June 1950 it was widened to a couple of metres by 45 workers, two of whom died. A 2011 rockfall at a tunnel led to a cantilevered walkway, reopened on 1 July 2012.

The gorge is known as "la garganta divina", the divine gorge. The trail began as a maintenance path for the canal feeding the Camarmeña-Poncebos hydroelectric plant, opened in 1921, whose turbines are driven by water falling 230 metres. Near Caín the gorge opens and the path crosses a bridge into the village.

The full route requires about six hours for the round trip, so starting early in the day is advisable. The path is mostly narrow, with sections running close to rock walls that can become slippery when wet.

The path holds a steady elevation of 530 meters (1,740 ft) throughout most of its length, except for the initial two-kilometer (1.2 mi) climb from Poncebos. This constant level allows a steady pace through the entire gorge without further ascents.