Lagoa das Furnas

Lagoa das Furnas, in the middle of São Miguel’s Furnas Valley, is a place where volcanic forces and lush nature combine to create a truly unique landscape. The lake sits within a dormant volcanic crater, surrounded by verdant hills, forests and the charming village of Furnas. The area’s geothermal activity has shaped both the environment and local culture, making it one of the most fascinating destinations in the Azores. The valley is the caldera of one of the island’s three active volcanoes, which last erupted in the seventeenth century, and the heat below the surface is still evident everywhere.

The lake’s shores are dotted with steaming fumaroles and hot springs, where the earth bubbles and hisses with volcanic energy. One of the most distinctive traditions here is the preparation of cozido das Furnas, a traditional Azorean stew of meats and vegetables slow-cooked underground in pots buried in the hot earth. The pots are lowered into the ground in the morning and cooked for around six hours, and visitors can watch the pots being unearthed and sample this unique dish at local restaurants, making for an unforgettable culinary experience. On the northern shore, a pretty neo-Gothic chapel built in the late nineteenth century reflects in the water and is one of the best-known views in the Azores.

Lagoa das Furnas is also a haven for outdoor enthusiasts. Well-marked walking trails circle the lake and lead through forests of Japanese cedar, hydrangeas and endemic flora; a full circuit of the shoreline takes several hours at a relaxed pace. The Miradouro do Pico do Ferro viewpoint offers wide panoramic views over the lake, valley and distant mountains. The area is rich in birdlife, and the tranquil waters of the lake reflect the ever-changing skies, creating a magical atmosphere for photography and relaxation. Hydrangeas bloom along the roadsides in summer, covering the island in blue and pink.

Nearby attractions include the Caldeiras das Furnas, a geothermal field with boiling mud pools and mineral springs, and the Terra Nostra Park, a botanical garden famous for its thermal swimming pool and exotic plant collections. The pool’s water is rich in iron and has a rusty, orange-brown color, and swimming in it is a highlight for many visitors. The village of Furnas itself is home to historic churches, tea houses and the Museu da Terra, which explores the region’s geology and traditions. More thermal pools, such as the Poça da Dona Beija, offer a more rustic soak, and the springs in the village produce naturally sparkling mineral water that can be tasted straight from the source.

Getting to Lagoa das Furnas is easy by car or organized tour from Ponta Delgada (about 45 minutes). Public buses also connect Furnas with other towns on São Miguel. The area offers a range of accommodation, from rural guesthouses to boutique hotels, many with views of the lake or valley. The weather in the Azores can change quickly, so a light waterproof jacket is a sensible addition at any time of year.

The best time to visit Lagoa das Furnas is from May to September, when the weather is mild, rainfall is less frequent and the landscape is at its greenest. Spring and early autumn are especially pleasant, with blooming flowers and fewer crowds. Even in winter, the geothermal features make the area attractive, though rain is more common. For volcanic wonders, hiking and unusual food, Lagoa das Furnas promises a memorable Azorean adventure.