The Dunas de Concón are a series of large sand dunes located along the coast of Concón, a town in central Chile. These natural formations are part of the La Laguna Verde ecosystem and are known for their stunning views of the Pacific Ocean. The dunes are popular for various outdoor activities, including sandboarding and hiking. Visitors to the Dunas de Concón can enjoy the unique landscape, which features shifting sands and diverse flora and fauna. The area is also a great spot for photography, especially during sunset when the dunes are illuminated by warm colors.