（Credit：Eniwa River Conservation Association）

A river cleanup of the Izari River and Moizari River was carried out under the organization of the Eniwa River Conservation Association.
In 2025, the cleanup took place on Saturday, July 12, with the cooperation of 45 organizations and 309 participants. A total of 6.3 km of the Izari River and 3.6 km of the Moizari River were cleaned, resulting in the collection of 90 kg of trash.