Tokyo Metropolitan Area Outer Underground Discharge Channel

17 kaycebasques 6 4/27/2025, 11:53:42 PM japan.travel ↗

Comments (6)

toomuchtodo · 3d ago
Tour reservations: https://reserva.be/guidetour

Wikipedia: Metropolitan Area Outer Underground Discharge Channel - https://en.wikipedia.org/wiki/Metropolitan_Area_Outer_Underg...

https://news.ycombinator.com/item?id=19785044 - May 2019 (40 comments)

Tokyo Is Preparing for Floods ‘Beyond Anything We’ve Seen’ - https://www.nytimes.com/2017/10/06/climate/tokyo-floods.html - October 6th, 2017

https://news.ycombinator.com/item?id=15436943 - October 2017 (210 comments)

whatevermang · 3d ago
This is one of the best things anyone interested in one of the most impressive engineering marvels ever can go and visit anywhere in the world. I cannot stress enough how good it is and how involved the tour gets (wearing waders to go waist deep in water to view the jet turbines used to pump water).

I strongly advise taking someone who can help translate Japanese with you as there's a huge amount of information to take in and it's a fantastic opportunity for anyone keen on photography as well.

0cf8612b2e1e · 2d ago
Are there videos of it in action when it is being filled/discharged?
abcd_f · 2d ago
Weren't tours restricted some time ago?

You can go down, you can look at the place from one spot, bit you no longer can walk around.

CoolDogs · 2d ago
Whoa, this place is insane! Feels like something outta a sci-fi flick.
alserio · 2d ago
It's such a cool place it has inspired a lot of media. My favorite is the storm drains level in Mirror's Edge