This small circular route surrounds the Natural Monument of Caldeira da Graciosa and also allows you to visit the famous Furna do Enxofre, a huge cave of lava origin that lies in its interior.
Begin the trail in the area of Canada Longa and follow the road towards Caldeira. At the first fork, choose right, passing by Furna do Abel, a lava tunnel. Continue, pass by Furna d’Água of smaller dimensions and with an underground water reservoir. Reaching the top of Caldeira, go left passing by Furna da Maria Encantada, known because of its collapsed lateral walls.