The park is situated along the Myoshoji River, which flows through the western wards of Tokyo.
It is one of the few public parks in this specific Shinjuku-ku neighborhood that maintains a full-court basketball facility.
The park serves as a local emergency evacuation site in the event of a natural disaster, as designated by the Shinjuku City government.
Ochiai Park is a neighborhood public space located along the banks of the Myoshoji River in Shinjuku City. The park features a dedicated outdoor basketball court, which is a rare amenity in Tokyo's densely populated urban areas. It includes multiple children's play zones equipped with climbing structures and swings. A central pond serves as the park's focal point, providing a habitat for local bird species and aquatic life. The park grounds offer open green spaces and paved pathways suitable for walking and light recreation. It functions primarily as a community hub for residents of the Nakai district. The facility is managed by Shinjuku City and remains open to the public throughout the year.
The bridge overlooking the pond provides a panoramic view of the park's greenery and the river path.
Visit during the weekday mornings to ensure the basketball court is available for use.
Bring your own equipment, as there are no rental facilities for basketballs or sports gear on-site.
The area near the riverbank can be prone to mosquitoes during the peak of summer.
Do not attempt to use the basketball court during heavy rain, as the surface becomes slippery and dangerous.
Respect local noise ordinances by keeping music and shouting to a minimum; clean up all litter and dispose of it in designated bins.