Piton de la Fournaise

Piton de la Fournaise is a shield volcano on the eastern side of Reunion Island, a French overseas department in the Indian Ocean, rising to 2,621 meters and more than 530,000 years old. It is one of the most active volcanoes on Earth, alongside Kilauea, with more than 150 documented eruptions since the seventeenth century and an eruption that began in January 2026. Its summit holds an eight-kilometer-wide caldera called Enclos Fouque with steep cliff walls, inside which sits a lava shield named Dolomieu topped by two craters, and the volcano's unstable eastern flank poses a potential tsunami hazard. It lies within Reunion National Park, a UNESCO World Heritage Site, and is a major destination for visitors to the island.