Gruta das Torres
Located in the Criação Velha parish, Gruta das Torres (cave) had its origin in pahoehoe type lava flows, extruded from Cabeço Bravo zone, and is the largest lava tube in the Azores, with 5150 metres of total length and a maximum altitude of 15 metres.
The inside is rich in geological formations, where stands out the different types of lava stalactites and stalagmites, side counters, lava balls, striated walls and ropy lavas.
This natural monument is also a priority geosite of the Azores UNESCO Global Geopark.
The Gruta das Torres is equipped with a Visitors Centre and provides a guided visit service in a natural environment, without the use of electricity or artificial footbridges, except at the start of the trail.