Hakone Kowakien Yunessun

Hakone Kowakien Yunessun is a unique hot spring theme park where you can bathe in novelty pools filled with real red wine, sake, green tea, and coffee. Unlike traditional onsens, this venue requires swimsuits in its main zone, making it highly accessible for families, couples, and those hesitant about nudity. Expect a lively, family-friendly atmosphere complete with outdoor water slides, scenic mountain views, and a relaxing, unconventional spa experience.

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