Arenales

Arenales is a stratovolcano in Laguna San Rafael National Park rising to approximately 3,437 meters, with a distinctive summit covered by extensive ice and glacial formations. The mountain sits in a remote region of the southern Andes and presents considerable challenges for access.

A Japanese-Chilean expedition team led by Professor Tanaka achieved the first documented ascent in 1958 under challenging conditions. The last recorded volcanic activity occurred in 1979, since contributing to scientific understanding of dormant volcanoes.

The volcano holds meaning in Mapuche traditions, as indigenous communities maintain a deep connection with the mountains through their ancestral stories. This relationship shapes how local people understand and relate to the landscape.

Expeditions begin from Coyhaique and require extensive mountaineering equipment as well as careful planning due to the remote location. Weather in this remote region can be unpredictable and change rapidly, so proper preparation and an experienced guide are essential.

The mountain shows traces of two distinct eruptive styles documented in its geology, helping researchers understand the volcanic history of the region. These varying activity patterns make it a valuable study site for volcanologists.