Spain - Cabañas y Estacas

"From the official website of Cabañas y Estacas: "Cabañas y Estacas is a loop itinerary divided into 7 sectors, defining different areas and valleys through which it runs. The whole route involves about 760km (472 miles) and nearly 20.000 m. of elevation. Let the bikepacker time to enjoy the wildest valleys in Cantabria, like Valles Pasiegos, Saja-Nansa, and Polaciones…, cycling seaside paths by the edge of cliffs over amazing beaches, going through deep Oak and Beech forests or even go inside into the high mountain atmosphere in the very heart of Picos de Europa National Park"."