Terceira Volcanic Caves Day Trip, Angra de Heroísmo

Our guide Bernardo was charming and a great professional, explaining all the details and answering all the questions tha...

Ignacio Rios

Delve into the volcanic depths of Terceira and discover the majesty of its geological formations. We'll discover the natural heritage of the Azores by visiting the Algar do Carvão, the Gruta do Natal, and the fascinating Furnas do Enxofre.

Details

Duration

3 hours.

Language

The activity takes place with a guide that speaks in English, although it may occasionally be done in two languages.

Included

Hotel pickup and drop–off (depending on selected option)
Transport by off–roading vehicle or van
English–speaking guide

Not included

Entrance to the caves: 19EUR per adult and 8EUR per child

When to book

You can book up to 1 day in advance if there are any seats left. Book now and guarantee your spot.

Supporting documents

Electronic voucher. Have it on your phone.

Accessibility

Not wheelchair accessible.

Sustainability

All services meet our

Pets

Not allowed.

Frequently asked questions

If you have other questions, contact us

Free cancellation

Free cancellation up to 48 hours before the activity starts. Any cancellations after this or no-shows on the day will not be refunded.

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Reviews of our customers

9.2

Exceptional 1,085 Travelers·141 reviews

September 16, 2026
Ignacio Rios Diaz
A Coruña, Spain
Our guide Bernardo was charming and a great professional, explaining all the details and answering all the questions that came up, from the different ...
As a couple
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April 1, 2026
Montserrat
Vigo, Spain
The instructor was extraordinary, both in his explanations and in his kindness. I would repeat the experience without hesitation; if you have the oppo...
Traveling solo
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September 27, 2026
Cátia Alexandra Sousa
Sintra, Portugal
Bernardo is an excellent guide and the visit was very interesting.
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September 15, 2026
Purificación Garcia Bermejo
Gijón, Spain
Our guide was very engaging and informative in his explanations. Everything he showed us was worth seeing. He was very kind and attentive. I recommend...
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September 8, 2026
Vanesa Macón Del Campo
Valladolid, Spain
Everything was perfect, and our guide Bernardo was excellent. He was patient with the variety of languages we spoke and was very kind and respectful. ...
Traveling solo
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August 26, 2026
Lidia Gomez Diaz-toledo
Toledo, Spain
It was an amazing day, our guide Bernardo was very attentive and friendly at all times; hiring him was the best decision.
With friends
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August 23, 2026
Diego Moreno Garcia
Madrid, Spain
The tour was fantastic, guided by Bernardo, who explained all the lava formations perfectly and helped us understand the formation and customs of the ...
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August 14, 2026
Nella
Paris, France
Super guide
As a couple
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August 8, 2026
Anna
Spain
A highly recommended activity, and Bernardo, the guide, was excellent! He knows a lot and shares it with great enthusiasm.
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August 1, 2026
Anónimo
Spain
Fantastic! A must-see to get to know Terceira better. The 3 incredible caves and the best possible guide. Do it! Don't hesitate!
With friends
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Volcanic Caves Day Trip

We'll pick you up from your hotel or from the indicated point in Angra do Heroísmo at the indicated time and begin our route to the volcanic caves of Terceira on board an off-road vehicle or a van, with the leafy forests and the characteristic fields of hydrangeas keeping you company along the way.

Cutting through the lesser-traveled trails of Terceira and making various stops at places known only to the guides, we'll arrive at the Guilherme Moniz crater, 640 m (2,099 ft) high. Here you can see the island's most important geological features: the Algar do Carvão and the Gruta do Natal. We'll tour these volcanic caves, exploring their interiors and the Azorian vegetation which flourishes inside, including holly, moss, and laurel.

During the tour, we'll discover the unique geological features of each site. Although often referred to as a cave or grotto, Algar do Carvão is actually the interior of an empty volcano, a geological phenomenon unique in the world. We'll venture into the volcanic chimney to admire the vegetation growing on its walls, its impressive stalactites, and the small interior pool resting at the bottom.

Gruta do Natal, meanwhile, is not a traditional cave but a genuine lava tube formed by underground magma flows; we'll explore its galleries while learning about its formation.

Next, we'll visit Furnas do Enxofre, a geothermal field famous for its active fumaroles that release sulfurous steam directly from deep within the Earth. After a 3- to 4-hour tour exploring these unique landscapes, we'll head back to the starting point or your hotel.

Itinerary Adjustments

Please note that the order of the itinerary may vary due to operational reasons or other factors.

Types of activities in Angra de Heroísmo

Guided tours and free tours

Other activities in Angra de Heroísmo

Terceira Whale Watching Terceira Electric Bike Tour West Terceira Van Tour + Cheese Tasting Whale Watching + Cabras Islets Cabras Islets Boat Trip Snorkeling in Cabras Islets Hiking Trails in Terceira Terceira Island Segway Tour Terceira Wineries & Vineyards Tour

Volcanic Caves Day Trip

Gruta do Natal, meanwhile, is not a traditional cave but a genuine lava tube formed by underground magma flows; we'll explore its galleries while learning about its formation.

Itinerary Adjustments

Please note that the order of the itinerary may vary due to operational reasons or other factors.

Volcanic Caves Day Trip