Thermes de Caldeira Velha

Thermes de Caldeira Velha draws chlorurated geothermal water from the active volcanic system of Sao Miguel island in the Portuguese Azores, where hot springs and waterfalls cascade from the rim of the Sete Cidades caldera through a lush tropical forest of tree ferns, ginger lilies, and hydrangeas into natural pools of warm mineral water at the base of the volcanic escarpment, creating the most visually dramatic free natural thermal bathing site in the Portuguese archipelago. Sao Miguel is the largest island in the Azores and its volcanic landscape of twin-lake calderas, fumaroles, boiling mud pools, and geothermal hotpots at Furnas represents one of the most accessible active volcanic environments in Europe, its crater lakes of Sete Cidades the most iconic image of the archipelago and the blue hydrangea hedges lining every road providing a visual symbol of the island as instantly recognisable as any in Atlantic Europe. The chlorurated thermal waterfalls of Caldeira Velha, maintained as a natural park with minimal infrastructure, offer an encounter with Azorean geothermal power in its most elemental and photogenic form, the hot water tumbling through a landscape whose exuberant botanical growth is fed by the same volcanic warmth that heats the therapeutic spring pools.