Touring Terceira's Caves and Volcanic Wonders
The genesis of the Azores is imprinted in 1766 volcanoes, nine of which are still placidly active. In the subsoil, there are almost 300 known volcanic cavities, in the form of caves, algares, and crevices. In the landscape, you'll find dry calderas, crater lakes, fumarolic fields, and hot springs. The remains of volcanic activity assume spectacular and easily visited forms, particularly in Terceira. Delve into natural wonders like the Algar do Carvão, Furnas do Enxofre (sulphur pits), and Gruta do Natal.
Discover more about each of these captivating sites with our detailed guide.
We've partnered with experienced tour operators to bring you exclusive tours showcasing the awe-inspiring volcanic wonders of Terceira Island. Discover the island's unique geothermal landscapes and learn about its rich geological history from knowledgeable guides. Learn more below:
- Explore Algar do Carvão, Furnas do Enxofre and Gruta do Natal in a Van Tour (Tickets Not Included)
- Small Group Excursion to the Three Vulcanic Sites (Tickets Included)
- Algar do Carvão in Terceira Island
The underground realm of Terceira Island is home to a breathtaking marvel, the "Algar do Carvão", a testament to the island's volcanic past. This majestic cave, once a conduit for molten lava, now captivates visitors with its vast internal space, creating an almost cathedral-like atmosphere. Its most striking features are the silica stalactites that dangle from the vaulted ceiling, renowned for being the largest of their kind in the world. As a highly sought-after destination and a protected natural reserve, Algar do Carvão operates with limited visiting hours. To fully experience its awe-inspiring beauty, it's essential to plan and prioritize this wonder in your travel itinerary.
- Gruta do Natal in Terceira Island
As you venture inside Gruta do Natal, you're greeted by an intriguing world shaped by natural forces. The cave's interior showcases a variety of volcanic rock formations, including lava stalactites and stalagmites, and the smooth, ropy surfaces characteristic of Pahoehoe lava flows. The tunnel-like structure of the cave, extending over a significant length, provides a fascinating glimpse into the subterranean landscapes of Terceira Island. The temperature inside the cave remains relatively constant, creating a cool refuge. Well-maintained paths and lighting systems ensure a safe and enlightening journey through this underground wonder.
- Furnas do Enxofre
On the surface, the “Furnas do Enxofre” (Sulphur Pits) are the eloquent testimony of the power of the Azorean volcanism: the landscape is dominated by fumaroles surrounded by reddish-colored terrain, which contrasts with the green of the mosses and other vegetation. The atmosphere is hot and with a peculiar smell... of sulfur.
Are you already in love with the Azores? Take a look at our stress-free packages that allow you to book your ultimate island adventure. All our packages are carefully curated by our team of local Azorean Experts so that you don’t need to worry about any details – just enjoy your trip!