Furnas Lake, Volcanic crater lake in São Miguel, Azores, Portugal.
Furnas Lake occupies a volcanic caldera at 925 feet (281 meters) elevation on São Miguel Island, featuring active geothermal vents and hot springs around its shores.
The lake formed within a caldera created by ancient volcanic eruptions, with the surrounding region continuing to be shaped by ongoing geothermal processes over centuries.
Local residents use the natural geothermal heat around the lake to cook traditional dishes like cozido, a stew buried underground in volcanic soil for several hours.
Walking trails circle the lake, providing access to fumaroles and hot springs, with local facilities offering thermal baths utilizing the mineral-rich geothermal waters from the area.
Scientists actively monitor the geothermal activity beneath Furnas Lake to study volcanic processes and assess the potential for developing renewable energy sources in the region.
Location: Azores
Elevation above the sea: 281 m
GPS coordinates: 37.75837,-25.33276
Latest update: November 28, 2025 15:21
Explore the most notable freshwater areas of Portugal, from natural lakes to artificial reservoirs, located on the mainland and the Azores islands. This collection presents a variety of sites offering swimming, water sports, and birdwatching, from the mountains of the North to the Alentejo regions, including the volcanic formations of the Azores.
Furnas
1.7 km
Poça da Dona Beija
1.7 km
Parque Natural da Ribeira dos Caldeirões
11 km
Gorreana
8.9 km
Chapel of Nossa Senhora das Vitórias
923 m
Parque Terra Nostra
2.1 km
Our Lady of Peace Chapel
9.3 km
Fabrica de Chá Porto Formoso
10.3 km
Caldeiras
3 km
Castelo Branco
2 km
Praia do Fogo
3.7 km
Convent of São Francisco
10.6 km
Ponta Garca Lighthouse
5.9 km
Church of Nossa Senhora da Mãe de Deus
7.9 km
Church of the Espírito Santo
9.5 km
Church of Nossa Senhora dos Remédios
8.7 km
Praia da Vinha da Areia
9.4 km
Miradouro do Frade
10 km
Furnas Golf Club
2.3 km
Poça da Dona Beija
1.7 km
Furnas
1.1 km
Igreja de Nossa Senhora do Rosário, Praça Velha, Mãe de Deus
7.5 km
Câmara Municipal de Vila Franca do Campo
10.3 km
Church of Nossa Senhora do Rosário (Povoação)
7.6 km
3 moinhos de água na Ribeira dos Caldeirões
11 km
Mata Jardim José do Canto
931 m
Casa e Parque das Murtas, Vale das Furnas
2.6 km
Edifício dos Paços do Concelho, Mãe de Deus,
7.6 kmReviews
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