Terceira volcanic caves: 4x4 tour
To see the volcanic caves of Terceira without arranging transport, the 3 to 4 hour tour by 4x4 or van brings together Algar do Carvão, the Gruta do Natal and the Furnas do Enxofre, with an English-speaking guide. The listing makes clear that cave entry is not included.

The tour
TerceiraVolcanic caves of Terceira
Algar do Carvão, Gruta do Natal and Furnas do Enxofre in a single tour.
Details and link
Which caves do you visit and how do they differ?
According to the published itinerary, the route reaches the Guilherme Moniz crater, 640 metres above sea level, where the island's two most notable cavities are found. Algar do Carvão is the inside of an extinct volcano, with its volcanic chimney, the vegetation on its walls, stalactites and a small pool at the bottom. The Gruta do Natal is a lava tube formed by ancient magma flows.
What is included and what do you pay separately?
The listing includes pickup and return to your hotel (depending on the option), transport by 4x4 or van and an English-speaking guide. Cave entry is not included and is paid separately, so count it in your budget. The tour is not wheelchair accessible.
Is it better to go on your own or with a guide?
Visit Azores points out that only a limited number of caves and volcanic pits are open to the public, and that the ones you can visit usually have fixed hours in spring and summer and, the rest of the year, only with advance booking. With the tour, the itinerary already covers access, and the route passes places that, according to the listing, only guides can reach. Bring suitable footwear, as Visit Azores recommends for geotourism.
How does it fit into your trip to Terceira?
The itinerary ends at the Furnas do Enxofre, a geothermal area with sulphurous steam vents. It lasts between three and four hours, so it leaves the rest of the day free. If you prefer a longer plan around the island, see the full-day tour and the Terceira page.
Frequently asked questions
Which Terceira caves does the tour include?
The itinerary mentions Algar do Carvão, the Gruta do Natal and the Furnas do Enxofre. The order may change for operational reasons.
Is cave entry included?
No. The listing says entry is not included and is paid separately. It does include transport by 4x4 or van and an English-speaking guide.
Does the guide speak English?
Yes, the listing states an English-speaking guide.
How long is the tour?
Between three and four hours, with pickup at your hotel or at a point in Angra do Heroísmo.
Can you cancel?
Yes, free up to 48 hours before. With less notice or if you do not show up, there is no refund.