Hakone Kowakien Yunessun (箱根小涌園ユネッサン)

Flow of the course

About this spot

A hot-spring theme park where you play in your swimsuit. Yunessun (ユネッサン) (the swimsuit area) is open 9:00-19:00 (last entry 18:00, as of August 2026, subject to seasonal change), and the large hot-spring bath Mori-no-Yu (森の湯) is open 11:00-20:00 (last entry 19:30). Pricing follows a dynamic schedule (dates A/B/C): the swimsuit area is 2,500-3,000 yen for adults and 1,400-1,700 yen for children, Mori-no-Yu is 1,500-1,800 yen for adults and 1,000-1,200 yen for children, and a passport covering both areas is 3,500-4,000 yen for adults and 1,800-2,000 yen for children. Children age 2 and under are free. The classic full-day routine is to explore the various swimsuit baths, then relax and warm up at Mori-no-Yu.

Season & hours

Tips

Prices vary by date (senior and disability discounts are available). The official site does not list fixed closing days, so please check the official website before you go for that day's operating hours and price tier. The swimsuit area is mostly indoors, so it can be enjoyed even on rainy days. It's mainly aimed at families with young children through elementary school age who enjoy playing in the water, and children age 2 and under are free.

Best time to visit

Enter in the morning and enjoy the whole day

Access & map

〒250-0407 Ninotaira１２９７, Hakone, Ashigarashimo District, Kanagawa Prefecture