2026 Hakone Kowakien Yunessun (箱根小涌園ユネッサン) Full-Day Course

This course lets the whole family spend a full day soaking at Hakone Kowakien Yunessun (箱根小涌園ユネッサン), a hot-spring theme park where you play in your swimsuit. Yunessun (the swimsuit area) is open 9:00-19:00 (last entry 18:00, as of August 2026, subject to seasonal change), while the nude bathing area, the large hot-spring bath Mori-no-Yu (森の湯), is open 11:00-20:00 (last entry 19:30). Pricing is dynamic: the swimsuit area is 2,500-3,000 yen for adults and 1,400-1,700 yen for children, a passport covering both areas is 3,500-4,000 yen for adults and 1,800-2,000 yen for children, and children age 2 and under are free. The day starts at Hakone-Yumoto Station (箱根湯本駅), the gateway to Hakone, with a stop at the free garden Horai-en (蓬莱園) in Kowakidani (小涌谷) before heading to the park. Enjoy a Hakone-style day: play in the swimsuit baths, then relax and warm up at Mori-no-Yu.