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The World's Coolest Caves

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Go deep within the world’s coolest caves to glimpse natural and man-made wonders, from giant crystal formations to Ice Age art.

Marble Caves in Patagonia

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Among in the remote glacial waters of General Carrera Lake—the second largest freshwater lake in South America—lies a jaw-dropping 5,000 million tons of marble. The Cuevas de Marmol, which also goes by the moniker Marble Cathedral, was naturally formed by more than 6,000 years of waves crashing against calcium-carbonate. To say it’s located a little off the beaten path would be an understatement (it takes flying 800 miles from Santiago to the city of Coyhaique followed by a 200-mile drive into the wilderness and a boat ride just to get there), but once faced with the spectacular turquoise light show on the pristine marble columns, you’ll forget all about the long-haul journey.

Why it’s cool:

In case you’re wondering what makes the white marble appear that stunning blue hue, it’s the reflection from the azure waters. Depending on water level and season, the chameleon-like cave is known to change colors. In the spring, expect shallow, turquoise waters that create a shimmer against the walls, while summer brings an intense blue shade due to a greater depth. No matter the time of year, though, the magical tunnels are sure to mesmerize.

Marble Caves in Chile

The World's Coolest Caves

Marble Caves in Patagonia

Among in the remote glacial waters of General Carrera Lake—the second largest freshwater lake in South America—lies a jaw-dropping 5,000 million tons of marble. The Cuevas de Marmol, which also goes by the moniker Marble Cathedral, was naturally formed by more than 6,000 years of waves crashing against calcium-carbonate. To say it’s located a little off the beaten path would be an understatement (it takes flying 800 miles from Santiago to the city of Coyhaique followed by a 200-mile drive into the wilderness and a boat ride just to get there), but once faced with the spectacular turquoise light show on the pristine marble columns, you’ll forget all about the long-haul journey.

Why it’s cool:

In case you’re wondering what makes the white marble appear that stunning blue hue, it’s the reflection from the azure waters. Depending on water level and season, the chameleon-like cave is known to change colors. In the spring, expect shallow, turquoise waters that create a shimmer against the walls, while summer brings an intense blue shade due to a greater depth. No matter the time of year, though, the magical tunnels are sure to mesmerize.

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