Tags: Cave.
The Gruta das Torres (Portuguese: Grottoe of Towers) is a lava cave a geological formation of volcanic origin formed from the flow and cooling of subterranean magma rivers. This formation is located outside the parish of Criação Velha in the municipality of Madalena on the western flanks of the island of Pico. The cave system formed from a series of pahoehoe lava flows which originating from the Cabeço Bravo parasitic cone about 500 to 1500 years ago.
