About the outdoor bath ‘AO-no-Yu’
The temperature of the outdoor bath is adjusted by combining two hot springs, one at 80℃ and the other at 30℃, which turns Onsen hot spring a beautiful emerald green color. Since June 2025, the 30C spring water suddenly have decreased. The beautiful color is caused by 30C spring water, so the color has become lighter or clearer. We apologize for the difference with the photo social media. Thank you for your understanding. Owner Kesuke Okimoto
