GALLARTA/CARDEO/OIANKAS/BORJA/CALIZAS/CADEGAL/GALLARTA

Route that links the steep slopes of the area. Bidegorri to the Playa and road to Cardeo to climb the slope to La Cuesta. Descend towards Zierbena and before arriving on the left, climb via the paved path to the center of La Cuesta. Descend to Muskiz and climb through Oiankas, then descend via n634 to Muskiz and road to Sopuerta to climb to Borja at Santelices. Bidegorri from Galdamesa to Gallarta and climb the Campillo and Las Calizas. Descend to Gallarta and climb through the mining museum to Cadegal and descend via the Arboleda road until reaching the bidegorri back to Cadegal and Gallarta.