2026 Hasunuma Water Garden (蓮沼ウォーターガーデン) Full-Day Course

A one-day course starring Hasunuma Water Garden (蓮沼ウォーターガーデン), the outdoor leisure pool in Sanmu City, Chiba Prefecture (千葉県山武市), which operates from Saturday, July 4 to Wednesday, September 23 (a public holiday), 2026. In the morning, browse local vegetables and seafood at Hasunuma Roadside Station (道の駅 蓮沼) right near the Kujukuri coast (九十九里浜), get some exercise on the wide lawns and adventure playground of the adjacent Hasunuma Seaside Park (蓮沼海浜公園), and then finally enter the pool at midday. With changing rooms, showers and a shop all in place, the facilities are reassuring even for first-time families. Taking in the spray on the water slides and the lazy river, you can play plenty in the sea breeze of Kujukuri until evening. Hours are 9:00 to 17:00 (last entry 15:00), and it is closed on July 6 to 10, July 13 to 17 and weekdays in September, so checking the operating days before you go is recommended. It makes for a summery day spent in a location surrounded by sea and greenery.