On the shores of Lake General Carrera in Patagonia, southern Chile, lies a marble cave known as the Marble Cathedrals. The unexpected natural wonder is sculpted by nature.
The cave originated over 6,000 years ago due to waves driven by nearby glaciers, crashing up against calcium carbonate on the peninsular of the remote glacial lake.
During the early spring, the shallow waters give the cave a turquoise color. Higher levels of water during summer give the smooth cavern walls a deep blue hue.
Today, one can explore the natural geological formation by kayak or boat.
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