At the upstream end of the Tamagawa Cycling Path is the Hamura no Seki sluice in the city of Hamura in Tokyo. In the riverside park, there is a statue of the Tamagawa brothers. According to the city’s website, the brothers built the Tamagawa Aquaduct in 1653 at the order of the Tokugawa shogunate.
There are several benches in the park, and the sluice cools the breezes that come across it. Many cyclists find it a nice spot to enjoy the scenery while catching their breath. Then, they turn their bikes around and head back toward the opposite end of the cycling path — about 50 kilometers downstream in Haneda, Ota Ward.