Marble caves

Las Cuevas de Mármol (The Marble Caves) sit in the middle of General Carrera Lake, which lies between Chile and Argentina. The tunnels and caves are only reachable by boat. The swooping arches have been formed by more than 6,000 years of water lapping against the rock, and the waters change color depending on the time of year.
Reblogged from National Geographic

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High and dry

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Chile’s Miscanti Lagoon licks at the arid and stark Altiplano. The lagoon is located at more than 13,000 feet (4,000 meters) above sea level within Los Flamencos National Reserve, and a variety of wildlife species, including the Chilean flamingo, call this Martian-looking landscape home.

Reblogged from National Geographic