The underground caves are one of the most amazing visits to take on Terceira Island. This tour includes the passage through the Natal Cave (lava tube) and the Algar do Carvão (the interior of the volcano), also includes the passage through the famous Furnas of Sulfur (fumarolas) and the leisure area Lagoa das Patas.
Larger groups pay less per person.
In demand: 13 of the next 30 departures are already sold out.
From the operator’s live schedule on Viator, checked Oct 6.
The first stop of the tour will be at a secret place called Lagoa das Patas. In this place it is possible to visit the stream that originates from Serra de Sta Bárbara, visit the Lagoon and interact with animals such as ducks and some birds. It is a leisure area full of life and nature!
Here we will visit the famous Gruta Natal and Lagoa do Negro. At this stop, you have the opportunity to walk through lava tunnels made by mother nature and see Lagoa do Negro up close.
Furnas do Enxofre is made up of an area that comprises several outlets of aggressive volcanic gases at different temperatures, some quite high. It has a small pedestrian trail that allows you to observe the sulfur smoke up close.
We visited the interior of a volcano in the center of Terceira Island! An unforgettable experience to remember for the rest of your life.
Reviews collected by Viator and Tripadvisor
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For a full refund, cancel at least 24 hours before the scheduled departure time.
Underground Van Tour (Half Day) | Terceira Island lasts about 3 hours. The itinerary has 4 stops.
Prices start at $57 per person for this Terceira experience, booked through Viator with the price shown before checkout. There is 1 booking option, so the final price depends on the option you choose.
According to the operator’s current schedule, it runs every day, starting at 2:00 PM.
Children aged 4–11 pay from $28, adults from $57. Infants go free.
It can: 13 of the next 30 departures are already sold out, so booking ahead is a good idea.
Yes. Cancel at least 1 day before the start for a full refund. Later cancellations are non-refundable.
Yes, pickup is offered. Pickup points include Angra Marina Hotel.
The experience is available in PT, EN, ES.
It is a small-group experience with a maximum of 16 participants.
Yes, bookings are confirmed instantly.
Travellers rate it 5.0 out of 5 across 160 reviews on Viator and Tripadvisor; it is run by Azores Nature Tours.
Reviews collected by Viator and Tripadvisor
This is an absolute must do tour when visiting Terceira, a visit to the Algar do Carvão especially being a special highlight. Our guide Andre was outstanding and made the entire experience exceptional from start to finish. He was very knowledgeable and shared many fascinating insights to the history, culture, and geological features of the island. Highly recommend this tour, guide, and Azores Nature Tours.
Our tour guide was super nice and likable; I would do the tour again anytime. Personally, however, the first stop at the artificial lake was not necessarily needed for me. A small point of criticism: It would have been nice to point out in advance that the entrance fees for the caves must be paid additionally. As a result, the tour was about €20 more expensive in total than originally stated. A brief note about this in the description would have been fair and helpful. Otherwise, a nice tour with a really great guide!
We were not sure what to expect on this half day tour but it wound up being so much fun and we highly recommend it. Andre was our guide and he was very personable and informative about all the stops. The two cave stops were very very different and totally unique experiences and so much fun. He gave us plenty of time to take photos and enjoy each place. Very much recommend this tour.
Even though we rented a car, it was super to have a driver and guide, Andre, take us to places unknown for an afternoon. His passion to share his knowledge with tourists was impressive and appreciated. The last cave it a global wonder!
One of the most fascinating adventures we have been on - walking in a lava tunnel and being inside a volcano and seeing and smelling sulfur springs -all in 1 afternoon’! This trip is worth the time and the money! And our guide Tony was awesome!
Another fantastic tour of Terceira Island! Everything was perfect from start to finish. André was once again an excellent guide — knowledgeable, friendly, and very passionate about the island. The Natal Cave, Algar do Carvão, the sulphur fumaroles, and Lagoa das Patas were all amazing and well worth visiting. André made the experience even more enjoyable with his knowledge and interesting stories. We were very satisfied with the tour and would highly recommend it!
Thank you so much for your preference and your kind words, was a pleasure for us having you here with us! Jaime Vargas Azores Nature Tours
We had an amazing time with Andre. He was extremely professional, showed on time for pick up at our hotel and filled the entire experience with so many details about the island that it made the tour even more interesting. Highly recommend this tour to anyone visiting Terceira and request Andre if you can! :)
Was a pleasure having you here with us! Jaime Vargas Azores Nature Tours
Great day seeing the islands. The botanical garden and hot springs were amazing and lunch was delicious. Hugo was very knowledgeable and had a lot of interesting history and stories to share
Thank you so much for your preference! Jaime Vargas Azores Nature Tours
Wonderful half-day excursion. Seeing the inside of the volcano is a unique experience and the visit to the Natal caves and the sulfur fumaroles and lagoon were also very interesting. The 3 hours fly by and the guide, Jaime, is attentive, very knowledgeable about the Azores and the route in particular, in addition to being very friendly and a great guide. 100% recommended
Thank you so much for your preference! The pleasure was all ours to provide you the best experience. Jaime Vargas Azores Nature Tours
I had an absolutely fantastic experience! On this tour, I was able to explore the unique caves of Terceira – an unforgettable highlight of my trip. The tour was excellently organized and the pickup went absolutely smoothly. My guide André was simply great. With a lot of expertise, enthusiasm, and incredible patience, he explained the formation of the caves to me down to the smallest detail. In doing so, he always addressed my wishes and perfectly adapted the pace of the tour to me. This tour was a real experience from start to finish. A very special thank you to André, who made the day perfect with his warm manner and dedication. I can wholeheartedly and without any reservation recommend this tour and especially André as a guide!
We really apreciate that you enjoyed as much as we did! Was a pleasure having you here with us! Jaime Vargas Azores Nature Tours
| Tour | Duration | Rating | Price | |
|---|---|---|---|---|
| Underground Van Tour (Half Day) | Terceira Island | 3 hours | 5.0 (160) | $57 | |
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