Best spa & onsen in Hakone
📍 ♨️ Hakone9 places in Hakone, ranked by real Google reviews. Hot springs, spas and wellness. The most reviewed is Tenseien, with 5,565 reviews.
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About spa & onsen in Hakone
How were these places chosen?+
We rank by a score combining the Google rating, the number of reviews and the recent trend — not just popularity.
How is the ranking calculated?+
We use a Bayesian score that blends the average rating with the number of reviews, plus a trend signal (new reviews per month). This keeps a place with 5.0 and 10 reviews from beating a classic with 4.3 and thousands.