Tag: viejo volcan

January 27, 2025. Cavernas del Viejo Volcan. Dina Huapi, Argentina. Today, we visited Las Cavernas del Viejo Volcán (The Caverns of the Old Volcano). This extinct volcano existed over 150 million years ago, underwater, before the Patagonian Mountains were formed. Its underwater volcanic vent expelled magma, which was rapidly cooled by the surrounding seawater. This…