The Ten Longest Caves in the World and Where to Find Them

When it comes to the worlds longest caves you might imagine a super long underground dome that is measured from side to side. In truth, all these caves are small, wiggly caves that often double back on themselves and pretty much impassable unless you are a cave diving expert. But that doesn’t stop them from being record-breaking, it just means we will need a lot more than a tape measure to record their lengths…   The Ten Longest Caves in the World and Where to Find Them   10 – Hölloch in Switzerland – Estimated Length: 203 Kilometres – 126 Miles This super-long cave system was once called the “hel” cave which in local dialect means slippery and that is

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