As part of the “Tamagawa Art Line Project,” it underwent renovations and reopened in 2009. The project aimed to create a children’s park where the city’s children could play while directly engaging with art born in the city, allowing art to blend into everyday life. The project was realized through collaboration between the Tama River Art Line Project, designers, artists, local government, and local factories.

Three sheep sculptures “POTAN”, which were produced in a factory in Ota Ward, are installed as part of the project.