. . . . . "The Gruta das Torres (Portuguese: Grotto 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 Cria\u00E7\u00E3o Velha, in the municipality of Madalena, on the western flanks of the island of Pico. The cave system formed from a series of p\u0101hoehoe lava flows which originating from the Cabe\u00E7o Bravo parasitic cone about 500 to 1500 years ago."@en . "Gruta das Torres Cave"@en .