La Cueva de los VerdesThe Canary Islands are a clump of volcanoes poking out of the sea, with all th
La Cueva de los VerdesThe Canary Islands are a clump of volcanoes poking out of the sea, with all the usual attendant geomorphological features (geomorphology studies the surface shape of the Earth and the processes that carve it). The cave in the photo (named after a local family) is a lava tube, a remnant of a covered river of flowing molten rock that erupted some 3,000 years ago on the island of Lanzarote. As the lava river poured out of the vent, the surface started to freeze into a crust, and the lava carried on flowing below, until it ran out. At that point the tube emptied, leaving behind the 7.5km long cave, which flowed both on land and beneath the sea. Parts of the roof have collapsed over time, leaving some 20 windows to the light above. The cave was a traditional hiding place form pirates, slavers or invaders, and is now a popular tourist spot, featuring a concert hall amongst other pleasures.LozImage credit: Luc Viatourhttps://hr.m.wikipedia.org/wiki/Datoteka:Lanzarote_5_Luc_Viatour.jpg -- source link
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