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.
You can go down, you can look at the place from one spot, bit you no longer can walk around.
toomuchtodo•9mo ago
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)