Puyehue-Cordón Caulle is a volcanic complex located in the Andes mountains of southern Chile. It consists of several overlapping volcanoes and is known for its significant eruptions, including a major event in 2011 that disrupted air travel across the region. The area is characterized by diverse ecosystems, including forests and lakes, making it a popular destination for nature enthusiasts. The complex is part of the Puyehue National Park, which offers various outdoor activities such as hiking and birdwatching. The park is home to unique wildlife and stunning landscapes, attracting visitors who wish to explore its natural beauty and geological features.