Arrive to Calderas, turn left at the big road with a colmado on the corner, after the litle brige on the main road. u must go straight until the last houses on the road like 500 m ahead. Ull have to ask the key of a lock because the road is private and so its guarded but its ok there is no problem they are very nice. and u go stragith ahead on the road u see in the map.