8 form course very demanding at a technical level, starting coinciding with P2 and P3. It develops by the total extension of the Castro Laboreiro plateau with entry in the place of Portelinha and exit by the "branda" of Portos. Passing through the "branda" of Padrosouro, "Inverneiras" of Cainheiras and Varziela towards Vila de Castro Laboreiro. Route with high landscape and heritage interest integrated in the area of the Peneda Gerês National Park.