The Most Beautiful Caves in the World

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Blue Grotto
> Location: Italy

Visitors can access this legendary location on the island of Capri off the coast of Naples by wooden rowboat – but only in calm seas at low tide. Inside, it’s almost completely dark. The cavern is only lit by azure blue light from the water – a crystalline blue with silver reflections.

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Hang Sơn Đoòng
> Location: Vietnam

If measured by cross-section, Hang Sơn Đoòng – in Phong Nha-Kẻ Bàng National Park, in Quảng Bình Province – is the biggest cave in the world. It was discovered in 2009 and opened to the public four years later. The cave is known for having underground rainforests. 

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Mendenhall Glacier Caves
> Location: Alaska, USA

Inside a partially hollow 12-mile long glacier, the Mendenhall Ice Caves near Juneau are only accessible by first kayaking to the edge, then climbing over the glacier. Fast-rising ocean temperatures in recent decades have contributed to the glacier receding by almost two miles since 1958.

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Pak Ou Caves
> Location: Laos

The Pak Ou Caves are a religious site, containing hundreds of statues of the Buddha. Local legend has it the caves were discovered in the 16th century and have been used for worship since then.

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Grutas de Cacahuamilpa Caverns
> Location: Mexico

Getting into these caverns – which form one of the world’s largest cave systems – requires a hike of over a mile. Cacahuamilpa is a “live” cave, meaning that water is still seeping into the formation.

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