It demands a high level of fitness and hiking boots; food is extra. 5 from 55 reviews at €180 per person.
In our comparison: #3 of 25 in Private Tours, by rating weighted by review volume (see the comparison).
One price for every traveller: €180 per adult.
Children from €180 (ages 12 to 17). Option texts and prices come from the operator's listing; prices checked on Viator on 30 September 2026.
100% of ratings with a star breakdown are 4★ or 5★: 55 of 55
Star breakdown of all 55 ratings
Reviewers praise the cave expertise, personal attention and photography help; some underground passages are narrow
Written by Guidekin from the 46 most recent English reviews on Viator & Tripadvisor (4 December 2018 to 1 August 2026). Refreshed as new reviews arrive; last checked 7 October 2026.
Reviews are shown as the platforms publish them and removed when they disappear there.
Ratings collected from Guidekin, Viator & Tripadvisor.
If you like to connect more with nature, this is the right activity for you. You can do one or more trails at your own pace, without pressure and have fun at the same time with us. The traces of vulcanice activity disclaim in Terceira Island spectacular shapes and easily visitable with achievement of trails. And this network of trails is on the disposition of all for enjoyment of the beauty unique exceptionally landscape.
Pass by, no stopUnique Tour, for people for you that love to be in the nature, adventurers and explorers.
Terceira Island, as volcanic origin presenting their morphological diversity, maintaining some common geological traits.
We wish to share these several beautiful caves (100%natural - difficult level) not open to the public.
Because the caves it`s in the nature and some with small areas, and we need to cross some farm fields, we recommend: Hiking boots * Pants and Rain jacket
God balance and flexibility
Algar do Carvão Will be closed from 20th of October 2024 till 2026, for renovation.
The only 2 places that are open to public is Volcano Algar do Carvão and Gruta do Natal. This places are only open Fall/winter on Tuesday, Wednesday, Friday and Saturday. In summer every day is open, also closed on expecial occasions as Christmas days or special date.
For children after 12 years old.
The operator's own notes, grouped by topic. Nothing here is added by Guidekin.
The booking form will also ask for: dates of birth, passport details, arrival flight or ship details
For a full refund, cancel at least 24 hours before the scheduled departure time.
| Tour | Price | Duration | Rating | Group |
|---|---|---|---|---|
| This tour · #3 of 25 | €180 | 6h–8h | 5.0 (55) | private |
| Private Terceira Island Full Day Tour | €150 | 7h | 5.0 (257) | private |
| BEST VIEW TOUR(Full Day Private Tour) | €190 | 6h | 5.0 (107) | private |
| Sete Cidades and Pineapple Plantation Half Day Private Tour | €160 per group | 3h | 5.0 (50) | private |
Ranked #3 of 25 in Private Tours by Guidekin score (rating weighted by review volume). Prices here run from €70 to €300, median €150; typical length 6h. 25 of 25 are private. Figures are live from the tour cards; the rubric is our handpicked set, not the whole market. Compare all 25 Private Tours