Furnas do Enxofre is a surreal geothermal field where steam vents, sulfuric gases, and bubbling mud pots emerge straight from the earth. Set in the middle of Terceira’s highlands, this otherworldly landscape offers a rare glimpse into the volcanic forces still shaping the Azores today.

A wooden walkway leads visitors safely through the terrain, where the ground is warm to the touch and the air carries the distinct scent of sulfur. Surrounded by endemic vegetation and mist, it’s an atmospheric, almost mystical location that demonstrates the raw, living energy beneath Terceira’s surface.

Why Visit:

• One of the most active geothermal zones on the island

• Unique volcanic features: fumaroles, sulfur vents, and boiling ground

• Educational experience with interpretive signs explaining geothermal activity

Interesting Facts:

• The site is part of the Terceira Nature Park and has been stabilized for eco-tourism with elevated paths.

• In cooler months, steam rising from the ground is especially visible, creating a dramatic effect.

• The colors of the earth range from yellow to red, due to the high mineral content and oxidation.

Access:

• Easily reachable by car with a small parking area nearby

• The loop trail takes about 10–15 minutes to complete at a relaxed pace

• Free entrance, open year-round

Insider Tip: Visit on a cool or humid morning when the geothermal steam is at its most visible — it’s perfect for photography. While drone flights are not typically necessary here, the contrast of sulfuric terrain and lush green hills around it makes it a great place for close-up nature shots. Plus, it's part of the Azores UNESCO Global Geopark and a Ramsar Site, making it a pretty special spot for nature lovers to explore.