Tamagawa-Josui is a conduit that sustained the decelopment of Edo / Tokyo.
It became an Official National Historic Site in 2003, which marked the three hundred and fiftieth anniversary of its completion.
The richly green walking paths at both banks, which leads from Hamura Dam (Hamura Syusuiseki) to Shinjuku, are places of relaxation for those who visit and have been designated National Places of Scenic Beauty with their Koganei Cherry Blossoms that bloom around the Koganei-bashi Bridge.
- Open 24 hours
- No closing days
Access / Public Transport
- Hamura Dam (Hamura Syusuiseki): 15 minutes from JR Hamura Station
- Short walk from Tamagawa-Josui Station on the Seibu Haijima Line and Tama Toshi Monorail
- Koganei-bashi Bridge: 5 minutes walk from JR Musashi Koganei Station
- Short walk from JR Mitaka Station