GCANS - Drainage Cavern - Tokyo, Japan | Tokyo

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4m 17s: Lenght

Checked out the massive underground drainage cavern north of Tokyo that prevents flooding in the Kanto Plain. https://www.instagram.com/treborcd/

Comments

I went in as well, you will need someone in your group that can speak Japanese fluently (really fluent) to cover for you in case of emergency. Its cold inside; its really huge and you will be down for like 15-20 mins. Its really cool, and a lot of Japanese themselves dont know about its existence.