From Ushuaia, we take the RN No. 3 to the Tierra Mayor Valley, until you reach the homonymous winter center, where the activities will take place. When you arrive at the winter center, the guide will indicate the order of activities, to start the crossing through the valley in the middle of the winter night with sleds pulled by dogs, until you reach a path of torches that marks the entrance to the forest, and by which you arrive to the hut, where he will be waiting for dinner, which will be accompanied by a guitar. The return will be made according to the chosen option (rackets or motorcycles ). the excursion is subject to snow conditions.