Shimanto River: Japan's Longest Natural River Called the Last Clear Stream

Shimanto River: Japan's Last Clear Stream Without Dams

The Shimanto River (Shimanto-gawa) flowing through Shimanto City and Shimanto Town, Kochi Prefecture, is the longest river in Shikoku at 196 kilometers in total length. Without large dams built and preserving its natural state, it is called "Japan's Last Clear Stream" as a precious river.

Submerged Bridge Scenery

"Submerged bridges (chinka-bashi)" that have become synonymous with the Shimanto River are low bridges without guardrails. They have a structure that submerges under the water surface during flooding, not impeding river flow. 22 submerged bridges currently remain in the Shimanto River basin, with the simple scenery of river surface and bridge popular as Shimanto's original landscape.

River Fishing Culture

Traditional river fishing is still practiced on the Shimanto River. Unique fishing methods including "tekubiri (hand-scooping) fishing," "fire-swinging fishing," and "gori fishing" are inherited, with natural ayu (sweetfish), eel, and freshwater prawns caught in the river available to enjoy at local restaurants.

Canoeing and River Play

Canoeing experiences on the highly transparent Shimanto River are popular activities from spring to summer. Rich waterside time including sandbar camping, fishing, and water play in mid-river sandbars can be enjoyed.

Access

Nearest stations are JR Shimanto City and Tosa Kuroshio Railway Nakamura Station. Approximately 2 hours by car from Kochi city.