Crawling Through The Tightest Cave In The World!

This was the scariest thing I've ever done in my life...

I crawled for 10 hours through the most claustrophobic cave in the world, Ogof Y Daren Cilau, which is home to one of the tightest squeezes known, "The Vice".

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This is a survival challenge video similar to other YouTubers such as Tyler Oliveria, Fidias, Airrack, Ryan Trahan and Mr Beast.