GUIDE
Gruta das Torres is the longest known lava tube in Portugal, a guided walk through a cave formed by the same eruption that shaped much of the island.
A lava tube, visited on a guided walk only. Helmet and torch are provided at the visitor centre. Book ahead in peak season: group sizes are capped for safety.
Length, opening hours, ticket price and the guided-tour timetable all need sourcing against the Azores Geopark and the visitor centre before this page can be promoted to
verified. They were deliberately removed fromkey_factsrather than left there unsourced: a figure with no source is the one thing this site does not publish.