The São Vicente Caves are a series of volcanic caves located on the island of Madeira, Portugal. Formed by ancient lava flows, these caves showcase stunning rock formations and unique geological features. Visitors can explore the underground passages and learn about the island's volcanic history through informative displays. The caves are part of the São Vicente Valley and are a popular tourist attraction. Guided tours provide insights into the formation of the caves and the surrounding landscape. The site also includes a visitor center with exhibits on the natural history of Madeira and its volcanic activity.