Enjoy the lazy river and three water slide varieties until evening

About this spot

Tsumakoi Water Park operates from July 18 (Saturday) to September 6 (Sunday) in 2026—Kakegawa's premier outdoor leisure pool (July 11-12 are preview days, September weekends only). The 150-meter lazy river is wonderfully relaxing, drifting on a float as a family-friendly highlight. Three water slide varieties are available: River Ride (100m), Water Slider (122m), and Speed Slider (65m), offering thrills for elementary school children through adults. A diving pool caters to confident swimmers, providing diverse play options. Operating hours are 9:00 AM–5:00 PM, with some days extending to 9:00 PM, inviting return visits with fresh ideas. Enter leisurely from noon and enjoy water play to the fullest until closing at 5:00 PM.

Season & hours

Tips

Admission prices are 2,300–3,300 yen for adults, 2,200–3,000 yen for high school and middle school students, 1,300–2,300 yen for elementary school children, and 900–1,400 yen for preschoolers, varying by period—check the official website in advance. Parking is 800 yen per car. Busy summer weekends fill quickly; securing a spot right after entry is reassuring. Concessions are available, making park lunch convenient.

Best time to visit

Entering at noon avoids the crowd peak and allows full play until the 5:00 PM closing.

Access & map

Tsumakoi Water Park, Kakegawa City