THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
Spend a full day below Terceira’s volcanic surface on a private tour that explores natural lava tubes and vertical chimneys. This physically demanding caving experience pairs geological insight with hands-on scrambling—ideal for experienced hikers who want an off-the-beaten-path adventure.
Spend a full day below Terceira’s volcanic surface on a private tour that explores natural lava tubes and vertical chimneys. This physically demanding caving experience pairs geological insight with hands-on scrambling—ideal for experienced hikers who want an off-the-beaten-path adventure.
Verified experiences and guided adventures in the surrounding area.
Operated by Azores Expeditions · Angra do Heroísmo, Azores
You step out of the minivan and the Atlantic wind pushes the salt and green into the cave mouths as you tighten your boots. On Terceira Island, basalt cliffs and old lava flows give way to a hidden underworld: collapsed chambers, narrow passages and vaulted volcanic chimneys that shape this full-day private underground tour.
challenging.
6–8 hours.
Participants should be in strong hiking shape with good balance and no limiting back, knee, or heart conditions.
Children must be at least 12 years old and accompanied by an adult; the route requires balance and the ability to follow safety instructions.
No—some sites have seasonal hours or temporary closures for renovation; confirm which caves are included when you book.
You’ll be provided a helmet and the tour requires no rope work; bring your own headlamp and wear sturdy boots.
Yes—hotel pickup and drop-off are included; transport is by air-conditioned minivan as part of the private tour.
Terceira formed from successive volcanic eruptions; features like volcanic chimneys reflect explosive phases followed by lava-tube formation.
Cave ecosystems are fragile—avoid touching formations, stay on routes, and follow guide instructions to minimize impact.
Azores Expeditions operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
Book with Azores Expeditions
Book directly with Azores Expeditions for the best rates and real-time scheduling.
Reserve Now