In Sardoura, the trail descends from Monte de São Gens (which you first have to climb) to the Douro River, passing through the "Dry Feet" trail that miners used to avoid getting their feet wet on the way to the mines. Along the way, Vinho Verde vineyards and the ruins of an old paper mill by the Sardoura River.
Type: Marked Trail Loop
Distance: 11
Difficulty: Moderate (level 3)
GPS Coordinates: 41°03'27.2"N 8°17'40.3"W