Access only during South Portal Opening Hours November to April: 08:00-20:00 May to October: 09:00-17:00 Registration is mandatory online or at the South Portal of the Los Alerces National Park: https://docs.google.com/forms/d/e/1FAIpQLSevyUzrFo2eMiQK_874Dk8niRO4Aq5B7F7tlSXCrndqs0luQw/viewform