From the village of Malalcahuello you have to drive towards the Corralco ski resort, once you get to the bridge Colorado take right, sometimes from there the road could be all snow covered from here so you will have to decide if leaving the car there or continue to the Cautín bridge, which is usually the parking.

From the car start skinning up on the car road until a sign that says "Mirador Pehuenche", here you have to go down and left until crossing a stream and immediately a fence, once the landscapes opens up you go up and right and follow a well marked forest path. When the path finish just follow the ridge up until you get above treeline and you will see the Mirador Patachoique.

The way down is the same you did up offering a fun and easy terrain to ski in. The main difficult going down could be the trees and bushes but the slope is enough clear to leave you enjoy the way down.