Dear visitors,
Conaf reports that as of October 15, 2016, it will be mandatory to have reservations to spend the night in the Circuito Macizo Paine and Sendero W camps. It will be checked the visitors who enter the trails, who must have printed the voucher or confirmation email Of your reservation. It will be controlled in all access to the mountain trails and in the camps.
Those who do not have reservations will be expelled from the park. More information in this PDF