Cave tickets are paid on top; not for spinal injuries or pregnancy. 4.95 from 160 reviews at €50 per person for 3h.
Best for: Book the Underground Van Tour for caves and fumaroles with a guide and pickup; cave tickets extra: 3h, €50 per person, 4.95 from 160 reviews. Terceira comparison
Trade-off: Not for pregnancy or spinal injuries.
In our comparison: #6 of 19 in Terceira, by rating weighted by review volume (see the comparison).
One price for every traveller: €50 per adult.
Children from €25 (ages 4 to 11). Option texts and prices come from the operator's listing; prices checked on Viator on 26 September 2026.
99% of ratings with a star breakdown are 4★ or 5★: 159 of 160
Star breakdown of all 160 ratings
Reviewers praise the guides and volcanic sights; cave visits involve plenty of steps and some tight passages
Written by Guidekin from the 100 most recent English reviews on Viator & Tripadvisor (24 May 2022 to 1 October 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.
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!
20 minAt this stop, you have the opportunity to walk through lava tunnels made by mother nature and see Lagoa do Negro up close.
30 min · Admission not includedFurnas 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.
20 minWe visited the interior of a volcano in the center of Terceira Island! An unforgettable experience to remember for the rest of your life.
30 min · Admission not includedThe 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.
The operator's own notes, grouped by topic. Nothing here is added by Guidekin.
For a full refund, cancel at least 24 hours before the scheduled departure time.
| Tour | Price | Duration | Rating | Group |
|---|---|---|---|---|
| This tour · #6 of 19 | €50 | 3h | 4.95 (160) | shared |
| Private Terceira Island Full Day Tour | €150 | 7h | 5.0 (257) | private |
| Terceira Island: Full Day Tour | €90 | 7h | 5.0 (75) | shared |
| Wines and Moonshines of Terceira | €139 | 8h | 5.0 (62) | shared |
Ranked #6 of 19 in Terceira by Guidekin score (rating weighted by review volume). Prices here run from €39 to €160, median €85; typical length 5h. 3 of 19 are private. Figures are live from the tour cards; the rubric is our handpicked set, not the whole market. Compare all 19 Terceira