Find the right onsen for today
Whether they let day visitors in, whether tattoos are a problem, what it costs and what the water is like — before you undress at the counter.
Where are you starting from?
What matters today?
What you get
Know the bath before you knock
Jōmon natural onsen - Shiraku no yu
Day visitorsYes
TattoosNot allowed
Price¥1,170
Gensenya (formerly Yoakeyakuto Onsen)
Day visitorsYes
TattoosPrivate bath only
Price¥650
Ota Anmin-no-Yu Natural Onsen
Day visitorsYes
TattoosNot allowed
Price¥1,000
What we answer
The questions a map cannot answer
Will they let me in at all?
37 of 1385 baths we cover are for staying guests or local residents only. Google calls all of them "onsen".
Are tattoos a problem?
Reported only when two or more visitors say so; 195 baths so far. Otherwise we print "not known — call ahead", never a guess.
What does it cost, and is it cash only?
Adult admission and payment notes as visitors reported them, with the years they said it.
Is the water real?
Free-flowing from the source (kakenagashi) or recirculated, heated or diluted — the thing Japanese reviewers argue about most.
When is the last entry?
Closing times, last-admission cut-offs and the Tuesday nobody warned you about.
What do I bring?
Towels, soap, locker coins — counted from the people who forgot them.
How we know
We do not guess
Official listings
Name, address, hours and category from Google Business listings, refreshed monthly.
Visitor evidence
Japanese-language reviews read in full, turned into yes / no / unknown facts with the number of mentions and the years they span. The text itself is never republished.
Government statistics
Ministry of the Environment counts per prefecture, so we know how much of the universe we cover.
A quality gate
Every quote is checked against the source; every claim needs two independent visitors before it prints. Tattoo policy on one visitor's word is suppressed.
49,317
reviews read
19,442
facts published
1,385
baths covered
1,284
confirmed for day visitors
Narrow it down
Lists for a particular day
Day-use onsen · Gunma
Admit you without an overnight stay
Outdoor baths · Gunma
Rotenburo, confirmed by visitors
Free-flowing spring water · Gunma
Gensen kakenagashi, not recirculated
With a sauna · Gunma
Often with a cold plunge
Tattoo-friendly onsen · Tokyo
Two or more visitors report tattoos accepted
Day-use onsen · Tokyo
Admit you without an overnight stay
Outdoor baths · Tokyo
Rotenburo, confirmed by visitors
Free-flowing spring water · Tokyo
Gensen kakenagashi, not recirculated
With a sauna · Tokyo
Often with a cold plunge
Tattoo-friendly onsen · Kanagawa
Two or more visitors report tattoos accepted
Day-use onsen · Kanagawa
Admit you without an overnight stay
Outdoor baths · Kanagawa
Rotenburo, confirmed by visitors
Free-flowing spring water · Kanagawa
Gensen kakenagashi, not recirculated
With a sauna · Kanagawa
Often with a cold plunge
Tattoo-friendly onsen · Kyoto
Two or more visitors report tattoos accepted
Day-use onsen · Kyoto
Admit you without an overnight stay
Outdoor baths · Kyoto
Rotenburo, confirmed by visitors
With a sauna · Kyoto
Often with a cold plunge
Tattoo-friendly onsen · Oita
Two or more visitors report tattoos accepted
Day-use onsen · Oita
Admit you without an overnight stay
Outdoor baths · Oita
Rotenburo, confirmed by visitors
Free-flowing spring water · Oita
Gensen kakenagashi, not recirculated
With a sauna · Oita
Often with a cold plunge
Explore
