Lava Cave Tours
Into the volcano: tours descend into Algar do Carvão, a spectacular volcanic chimney with a vertical cavern, stalactites and a crystal-clear underground lake, along with the Gruta do Natal lava tube. A subterranean wonder.
49 tours · prices per person, book with partner
Lava Caves in Terceira — FAQ
What is Algar do Carvão?
A volcanic chimney on Terceira you can descend, with an underground lake.
Can you go inside Terceira’s lava caves?
Yes — steps lead down into Algar do Carvão and Gruta do Natal.
Are the lava caves worth visiting?
Yes — Algar do Carvão is one of the Azores’ most unusual sights.