沼津・湯河原温泉 万葉の湯
(ぬまづ・ゆがわらおんせん まんようのゆ)
Uses natural hot spring water
506. Numazu Yugawara Onsen Manyo no Yu, Shizuoka Super sento with onsen water. Price 1900-2400 (regular rate) and 3900-4400 (overnight rate), located 30 minutes by public transport from Numazu station. Open 24 hours, but the onsen is unavailable from 08:00 to 10:00 for cleaning (though you can still enter the facility). They stamp the ICOI Project x Love Live! Sunshine temporary stamp rally. Previously stamped the 60 Shizuoka Onsens. Has a restaurant, massage, shop, arcade games, and anime collaborations. Private bath available (didn't try). Bath photos from the internet, matches roughly — visited in the evening. 1. Small outdoor zone. No view, everything behind a solid fence. 1.1. Stone bath with bubbles. Slight chlorine smell (stronger near the bubble zone). Clear water, temperature 40. 1.2. Small adjoining stone bath. Clear water, temperature 40-41. 1.3. Two-person reclining jet bath. 1.4. Round wooden bath. Clear water, temperature 40. 1.5. Cold stone bath. 2. Indoor zone. Breathing inside is fine. 2.1. Two baths with clear water, temperature 40-41. One of them has two jets. 2.2. Sauna. 2.3. Steam bath. The rare case where I liked the super sento facility itself (outside the baths) much more than the bath zone. The super sento made me want to hang out, but the baths didn't hook me — was expecting more scale and quality. Outside of stamp achievements and if you don't specifically need the facility's infrastructure, you can skip this one. 08.05.2025