Furnas is a volcano crater and the caldera is still active. At various points around Lagoa das Furnas you can see steam sources and holes in the ground. The local restaurants cook their stews 'Cozido nas Caldeira' in these pools.
, Stefan Cruysberghs, Nikon D610 + Nikon 24-70mm, Request high resolution photo Portugal, Azoren, Azores, Açores, Sao Miguel, Ponta Delgada, Sete Cidades, Mosteiros, Furnas