The Sekiyoshi Sluice Gate, part of the Yoshino Leat in Kagoshima, was originally constructed in the 17th century to supply water for rice paddies. In 1852, under the direction of Lord Nariakira Shimazu, it was renovated to support the Shuseikan Project, Japan’s first modern industrial complex.

The canal spans approximately 7 kilometers, with about 3.2 kilometers remaining today. It played a crucial role in providing water power for machinery, including a blast furnace and cannon-boring mill, marking a significant advancement in Japan’s industrialization during the Meiji era. 

Today, the Sekiyoshi Drainage Canal is recognized as a National Historic Site and is part of the UNESCO World Heritage listing for the Sites of Japan’s Meiji Industrial Revolution. Visitors can experience its serene environment, characterized by clear streams flowing through a picturesque valley, and learn about its historical importance through explanatory displays and guided tours.