The is a river found in the heart of

Tokushima City is the capital Cities of Japan, city of Tokushima Prefecture on Shikoku island in Japan. , the city had an estimated population of 245,264 in 122,539 households and a population density of 1,280 persons per km². The total area of the city is . ...

Tokushima Prefecture is a Prefectures of Japan, prefecture of Japan located on the island of Shikoku. Tokushima Prefecture has a population of 682,439 (1 February 2025) and has a geographic area of 4,146 Square kilometre, km2 (1,601 sq mi). Tokushima Prefecture b ...

. The

Suketō River The , also called the Fukushima River, is a river in Tokushima Prefecture, Japan. Course It starts on the western side of Hyōtan-jima where the Shinmachi River hits the Mitsuai Bridge and runs around to meet the river again to the east. The ri ...

, Tamiya River, Sako River, and Sumiyoshijima River are its tributaries. At current, the

non-profit organization A nonprofit organization (NPO), also known as a nonbusiness entity, nonprofit institution, not-for-profit organization, or simply a nonprofit, is a non-governmental (private) legal entity organized and operated for a collective, public, or so ...

Shinmachi Preservation Committee is in charge of keeping the river clean and holding tours around the river via boat.

History

During the

Edo period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

the Shinmachi River was a very busy area due to the travel of boats carrying

indigo dye Indigo dye is an organic compound with a distinctive indigo, blue color. Indigo is a natural dye obtained from the leaves of some plants of the Indigofera#Uses, ''Indigofera'' genus, in particular ''Indigofera tinctoria''. Dye-bearing ''Indigofer ...

ing wares, one of the main trades supporting finance in the region at the time.

Geography

The Shinmachi River runs through the middle of

Tokushima is a Prefectures of Japan, prefecture of Japan located on the island of Shikoku. Tokushima Prefecture has a population of 682,439 (1 February 2025) and has a geographic area of 4,146 Square kilometre, km2 (1,601 sq mi). Tokushima Prefecture b ...

, and passes by many well known tourist spots within the city area.

Water

Up until the early

Shōwa period Shōwa most commonly refers to: * Hirohito (1901–1989), the 124th Emperor of Japan, known posthumously as Emperor Shōwa ** Shōwa era (昭和), the era of Hirohito from 1926 to 1989 * Showa Corporation, a Japanese suspension and shock manufactu ...

, the condition of the river was so good as to allow people to swim there during the summertime. However, in the coming years the river became increasingly polluted and thus unsuitable for swimming. Efforts in recent years to clean up the river have improved its overall condition greatly, but there still remains some sludge on the bottom of the river and it has yet to return to its former glory.

Main events along the waterway

Events

The Aibahama Park and Mizugiwai Park areas along the riverside are popular spots for events. The river itself is also used during an event each Christmas, in which people dressed in Santa suits distribute gifts to children along the riverside from atop boats. Over 3,000 presents are given out each year.

Tourist spots

Tokushima City is home to many different historical sites due to its long history as the capital city in the region.

References

{{Rivers of Japan Rivers of Tokushima Prefecture Rivers of Japan