The Theme: Rocks & Stones (Info was taken from Wikepedia)
Cueva de los Verdes (Spanish for "Green cave"), because in the past its owners were the "Verdes" family. It's a lava tube and tourist attraction of the Haria municipality on the island of Lanzarote, a protected area of the Canary Islands (Spain).
Hundreds of years ago this place was such a nifty hideout from pirates, one of its tunnels earned the nickname ‘The Refuge’. These days, it’s not terrified locals that head into the network of caves and tunnels, it’s curious tourists instead. The real highlight, though, is an underground lake. Stand on its edge, look down, and the reflection of the roof will leave you feeling like you’re gazing into an abyss. I hope I have done it justice because it's one of the best optical illusions I have ever seen...
PS: A little green in V4

Isabel
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Stones and Rocks
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