10 of the World’s Most Breathtaking Caves (5 of 6)

8. Marble Caves, Patagonia

The Marble Caves of Patagonia, also referred to as the Marble Cathedral due to the elegant arches that resemble that of a grand church, is especially noted for the way the crystal blue water casts reflections off the cave’s white marble ceiling. 

9. Tham Lod Cave, Thailand

This exotic cave in northern Thailand has a river that runs through it and contains columns of calcium salt walls throughout. Hundreds of thousands of Pacific Swifts make this cave their home during parts of the year.