Castillo de Acher (2384m) con Virtxo

Ascent to Castillo de Acher from Selva de Oza in the Hecho Valley (Includes bonus drone footage). The climb is 7km +1250m (with a good sweat in the last 800m, which includes a Strava segment ;) ). Then we descend to the "Red Shales" area, which I highly recommend seeing; it's spectacular (it feels like you're on Mars...). Then the descent to Selva de Oza via the opposite slope... Total: 18km +1400m in 4h30' See Wikiloc track: https://es.wikiloc.com/rutas-senderis...