Caldeira Difficulty: Easy | Extension: 7 km | Average time: 2h30 The trail starts at the existing viewpoint and runs along the perimeter of Caldeira, a crater of an ancient volcano with a diameter of about 2 km and an average depth of 400 m. Dez Vulcões Difficulty: Medium | Extension: 20 km | Average time: 7h This trail begins … Continue reading Trails on the island