Are the campsites in Torres del Paine open all year round?

The opening dates of campsites and refugios vary. Most of the campsites remain closed up until October 1st and a few campsites in the upper part of the O Trek open on November 1st. Usually, they close at the end of April. If you plan to visit Torres del Paine during the winter months, you may need to contact Vertice Patagonia and Las Torres Patagonia directly.