Termas de Sulfurea

Termas de Sulfurea on São Miguel island in the Azores is set within one of Europe's most dramatically geothermally active landscapes, where the mid-Atlantic ridge has pushed volcanic islands above the ocean surface and continues to drive intense geothermal activity. The sulphurous springs of São Miguel, particularly in the Furnas valley, emerge at high temperatures from volcanic calderas, and the island's thermal culture is deeply integrated into daily life — locals cook the famous cozido das Furnas stew by lowering it into geothermal vents. The Azorean thermal tradition combines genuine volcanic geology with the extraordinary green landscapes of the North Atlantic islands, where hydrangeas border crater lakes and hot springs bubble beside the ocean. A thermal visit to São Miguel is an experience of volcanic geomorphology at its most spectacular.