Date：2026/08/14~2026/08/24Application deadline：2026/07/22 Venue：Ariake Water Reclamation Center / Tokyo Rainbow Sewerage Museum
Event Information
Exhibition
Call for Entries: Reiwa 8 Infectious Disease Prevention and Awareness Poster Contest!
Application deadline：2026/09/30
Emergency drill
Call for Participants: A Challenge for Parents and Kids! Sudden Downpour Escape Simulation (Underground Mall Evacuation Experience)
Date：2026/08/05~2026/08/07Application deadline：2026/07/24 Venue：Yaechika [Yaesu Underground Mall], Yanmar Tokyo, Midtown Yaesu / Esola Ikebukuro, Tokyo Metropolitan Theatre
Exhibition
We will be holding the “River Panel Exhibition,” an event related to the Reiwa 8 River Conservation Month!
Date：2026/08/26~2026/08/28 Venue：Shinjuku Station West Exit Plaza Event Area
Other
We are now accepting applications for participants in the “Let’s Walk Along the River and Tour the Facilities” event, part of the Reiwa 8 River Conservation Month activities!
Date：2026/10/03~2026/10/24Application deadline：2026/09/04 Venue：Minami-Asakawa River / Kyu-Nakagawa River / Tama River & Okutama / Shakujii River / Sumida River / Kanda River & Loop Route 7 Underground Regulating Reservoir
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Other
June is Flood Prevention Awareness Month! Make sure you’re fully prepared for flooding!
Date：2026/06/01~2026/06/30 Venue：Each sewage treatment facility (see Appendix 1)/Tokyo Rainbow Sewerage Museum
Symposium
The 19th Urban Revitalization Symposium Held
Date：2026/07/31Application deadline：2026/07/24 Venue：Tokyo Metropolitan Assembly Building, 1st Floor, Citizens' Hall/Online
Exhibition
Call for Artwork and Essays on Landslide Prevention and Exhibition of Submitted Works
Date：2026/06/01~2026/09/15Application deadline：2026/09/15 Venue：Toshima Village Workers' Welfare Center Table Tennis Room/Lobby of the main entrance on the 1st floor of the Kita Ward Office Building No. 1, Tokyo
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Symposium
Call for Participants: Symposium on Tokyo’s Rivers, to be Held in Shinjuku on July 11
Date：2026/07/11Application deadline：2026/06/12 Venue：都民ホール（都議会議事堂）
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