2026 Kirisato Nature Park Water Play Area: Full-Day Enjoyment Course

Kirisato Nature Park (桐里自然公園) in Ota City has a free waterfront facility with a stream and pond, the Kirisato Nature Park Water Play Area (Waterfront Facility) (桐里自然公園 水遊び場（親水施設）). In 2026, it's scheduled to be open from Friday, April 24 to around Wednesday, September 30, from 10:00 to 16:00. The closing date is not officially announced by the ward, so late September is a rough guide based on past years. It's closed for regular cleaning on August 13 and August 26, so plan around those days. The water is filtered and disinfected, but not drinkable. The venue is Kirisato Nature Park in Ota City, a calm, wooded park true to its name. Admission is free. In the morning, head to the nearby Ota City Ryushi Memorial Museum, where works so large they make you look up are displayed in a building designed by Japanese-style painter Kawabata Ryushi himself. Next, head to Ikegami Honmon-ji Temple, head temple of the Nichiren sect. The spacious grounds beyond the long stone stairway, and the five-story pagoda built in the early Edo period, are truly impressive. For lunch, spread out a bento in the shade of the adjacent Honmon-ji Park, and in the afternoon, play in the water at Kirisato Nature Park Water Play Area (Waterfront Facility) until it closes at 16:00. With grand paintings, a grand temple, and splashing water, it makes for a memorable day.