Nagoya Low-water Bridge

The Nagoya Low-water Bridge, or Nagoya Chinka-bashi, is a traditional low-water bridge crossing the Niyodo River.

Unlike modern bridges, the Nagoya Low-water Bridge offers a close, almost intimate connection with the river, allowing visitors to truly feel the harmony between human life and nature in Kochi.

Crystal Basin (Suishō-buchi)

The Crystal Basin, or Suishō-buchi, is one of the most iconic spots in Yasui Valley. Its name comes from the astonishing clarity of the water—so pure that the riverbed looks like polished crystal. The pool reflects sunlight in brilliant shades of blue and emerald, offering some of the clearest views of “Niyodo Blue.” Visitors often describe it as looking like liquid glass.

Sabō Dam (Check Dam)

Further upstream stands a sabō dam (erosion-control dam). While it was originally built for flood and sediment control, the calm water held back by the structure creates a mirror-like surface that beautifully reflects the surrounding forest. The contrast of man-made engineering with the untouched natural beauty highlights both the power and harmony of the landscape.