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Onsen and baths in Ota
7 baths — 2 admit day visitors, 3 have an outdoor bath, 0 run free-flowing spring water. Every fact below carries how many visitors said it.
Ota, Gunma · Browse all Gunma baths
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Good places to start
Yurabu Ota Natural Onsen
Day visitorsNot known
TattoosNot known
Price—
Ota Anmin-no-Yu Natural Onsen
Day visitorsNot known
TattoosNot known
Price¥1,000
Genji Yudan
Day visitorsNot known
TattoosNot known
Price¥500
All of them
Every bath in Ota
Yurabu Ota Natural Onsen
Outdoor bath: Yes
A large multi-bath super-sento with an unusually varied lineup of outdoor baths, barrel and Mongolian-style saunas, and a capsule-style overnight option, undercut by a notoriously customer-unfriendly cash-only 100-yen hair dryer system and one reviewer's claim that the low-flow spring water is actually recirculated despite the 'natural hot spring' branding.
Ota Anmin-no-Yu Natural Onsen
¥1,000 · Outdoor bath: Yes
A large suburban super-sento next to an Aeon Mall with several indoor and outdoor baths, cypress and tsubo kakenagashi tubs alongside recirculated pools, a sauna and cold plunge, but a near-universal complaint of pay-per-use hair dryers.
Genji Yudan
¥500
A cheap (¥500 weekday/¥650 weekend) sodium-chloride spa attached to a fitness gym, with sauna, cold bath, and a paid rock-bath course, but reviewers frequently complain about noisy regular customers and cleanliness, and disagree on whether the water is kakenagashi or recirculated.
Ojima Onsen Tone-no-Yu
¥500 · Day visitors: Yes · Outdoor bath: Yes
A municipal day-use bathhouse near Ota with indoor and outdoor baths, sauna and cold plunge, tattoo-friendly and cheap for non-residents, though prone to temporary construction closures.
Otashinittafukushisogosenta
¥500 · Day visitors: No · Outdoor bath: No
A municipal (Ota City welfare-facility) sento-style day bath popular with elderly locals, with sauna and cold plunge but no outdoor bath; CAUTION: closed since June 2026 after Legionella bacteria were found in the bath water and at the source, with no confirmed reopening as of August 2026.
Takasagoyu
¥300 · Day visitors: Yes · Outdoor bath: No
A tiny, old-fashioned neighborhood sento (public bathhouse, not a natural spring) in a converted old house in Ota, with a single small heated tub using bath-salt additives, evening-only hours, cash-only 300 yen entry, and a regular-only, evening-only crowd of elderly locals.
Ryu-no-Ki Enzyme Bath
Public bath
Not a hot spring at all but a boutique, fully-private rice-bran fermentation (koso-buro/enzyme) bath studio, where guests lie nude or in paper underwear in warm fermented rice bran for a set session, followed by a mist shower, skincare, and a private cooldown room.
Narrow it down
Lists for a particular day
Day-use onsen in Gunma
Baths that admit you without an overnight stay
Outdoor baths
Rotenburo, confirmed by visitors
Free-flowing spring water
Gensen kakenagashi, not recirculated
With a sauna
Often with a cold plunge
Questions
Common questions
Can I bathe with tattoos in Ota?
Of the 7 baths we cover, visitors report tattoos accepted at 1 and refused at 0. For the other 6 no visitor states a policy — call ahead. We list a bath as tattoo-friendly only when at least two separate visitors report it.
Which baths in Ota admit day visitors?
2 of 7 baths admit day visitors according to reviews; 1 are for staying guests or local residents only. That matters more than it sounds: across Gunma, 20 baths turned out to be residents- or guests-only.
What does a bath in Ota cost?
Adult admission ranges from ¥300 to ¥1,000; the median is ¥500. 0 baths are free.
