Half the reason to ride Hokkaido is the hot water at the end of the day, and the rules at a Japanese bath are easy once someone walks you through them. This guide covers the routine first and then gets to tattoos, which is the question most riders ask before anything else.
Boots off and cash ready
Most day baths start with a shoe locker by the door. Your boots go in, and the wooden key comes with you. Wet shells and pants are better left in the car, because nobody wants snowmelt dripping across the lobby.
Tickets come from a machine or a window at the front. Town-run baths often want cash, and Yukichichibu in Rankoshi takes no cards or e-money at all. Hirafu's rebuilt Yukoro accepts only cards and QR payments, so carry both.
Bring a small hand towel if you have one. Most baths sell or rent them for a few hundred yen. In the changing room everything comes off and goes into a basket or locker, and the hand towel is the only thing you carry into the bathing area. Leave your phone in the locker as well. Yukichichibu and the New Furano Prince both ban phones from the bathing area, and plenty of other places post the same rule.
Wash before you soak
Find a free stool at the row of taps, sit down and wash properly with soap, hair included. Staying seated keeps your spray off the person next to you. Rinse off every trace of soap before you walk over to the tub.
Wild baths usually have no taps. There, scoop a little bath water over your shoulders and legs before you climb in, and keep soap out of the pool entirely.
In the water
Towels stay out of the bath. Fold yours on top of your head or leave it on a rock at the edge, and tie long hair up so it doesn't trail in the water. Lower yourself in slowly, because source-fed tubs can run far hotter than you expect. Keep your head above the surface.
Keep voices low. Quiet chat is normal, and a crew retelling the day's best line at full volume will empty a bath in minutes. Niseko Grand Hotel's posted rules make a fair summary of what most places expect: wash before you get in, and keep towels and underwear out of the tub.
When you get out, wring your towel and pat yourself down before you walk back into the changing room so you don't drip across the floor.
Mixed baths, wild baths and swimsuits
Mixed bathing (konyoku) survives in Hokkaido in two very different settings. Resort hotels such as Niseko Grand Hotel hand out cotton bathing wraps called yuami-gi for their mixed garden pool, and women get a separate outdoor bath if they'd rather skip it. Wild baths such as Fukiage Roten-no-yu above Kamifurano or Kotan on Lake Kussharo are free and unstaffed, with rough changing spots or none at all.
At wild baths the towel rule relaxes. Kotan allows swimsuits, and Kamifurano's tourism association suggests women wear a swimsuit or a towel wrap at Fukiage. In any mixed pool, keep your eyes to yourself and give people room to get in and out.
Wild baths depend on the people who use them. Locals often clean them, as a craft shop owner does at Kotan, so carry out every bit of rubbish and follow whatever signs are posted. Kotan's ask for quiet at night and ban camping and eating in the bath.
Water that bites back
Hokkaido's volcanic springs can be strong. Goshiki above Niseko runs at pH 2.6, and the Glauber's salt spring at Dai-ichi Takimotokan in Noboribetsu sits at pH 2.2. Keep acidic water out of your eyes and off fresh cuts.
Take off watches and jewellery before you go in. Kawayu's acidic water corrodes metal, and sulphur baths like Yukichichibu turn silver black. Yukichichibu doesn't admit children under five because of the hydrogen sulphide. After an acid or sulphur soak, a rinse at the taps keeps the smell from following you to dinner.
Tattoos in Hokkaido
The old blanket ban is fading, and Hokkaido now has the full range of policies. The Onsen Oni database, which tracks bath rules across Japan, lists 494 facilities that allow tattoos, 233 that allow them with conditions and 625 that refuse them, plus more than 4,000 that have never published a rule. The restrictions come from the old association between tattoos and organised crime, and staff apply them to Japanese and foreign bathers alike.
Here's how it plays out at baths in the Ride Hokkaido guide:
- Welcome. Hotel Kanronomori in Niseko Konbu Onsen says plainly that tattooed guests are welcome and sells cover stickers at the desk for anyone who wants them. Kawayu's public bath Yukichi in eastern Hokkaido lets tattoos in.
- Fashion tattoos only. Niseko Grand Hotel accepts tattoos but refuses traditional Japanese irezumi.
- Covered. Kirin-no-Yu at Hoshino Resorts Tomamu asks you to cover tattoos with patches, which reception sells. Bathing in clothing isn't allowed.
- Restricted or refused. Kurodake no Yu in Sounkyo and Kangetsuen at Tokachigawa are listed as refusing visible tattoos, and the New Furano Prince says tattooed guests may face partial restrictions.
- Unpublished. Many town baths say nothing either way.
Cover stickers solve most of the middle ground. Onsen Oni suggests applying them to clean, dry skin at least half an hour before you bathe and running them a centimetre past the edge of the ink. Pack spares. Private baths, called kashikiri, sidestep the question entirely. Niseko's Kiranoyu rents a small bath by the hour for ¥1,200, and Kanronomori has a family bath with a sauna. Neighbourhood sento tend to be the most relaxed of all.
When a bath publishes nothing, ask at the window before you pay. A simple line works:
Tatū ga aru n desu ga, nyūyoku dekimasu ka? I have a tattoo. Can I bathe here?
If the answer is no, thank them and try the next place. Arguing never changes the rule, and it makes the next rider's request harder.
After a day on snow
Drink a litre of water before your first soak, because a long day in the cold plus a hot bath is a reliable way to feel faint. Keep the beer for afterwards. Ten or fifteen minutes at a time is plenty, with breaks on the edge or in the cold air.
Check closing times before you leave the hill. Many day baths stop selling tickets an hour or more before they close, and some keep short hours: Yukichichibu sells its last tickets at 6:30 pm, and Kamihoroso at Tokachidake Onsen ends day bathing at 3 pm.
Watch the volcano news in the Tokachidake area this season. The Japan Meteorological Agency raised Tokachidake to alert Level 3 on 12 September 2026. Hakuginso and the Fukiage wild bath have been closed since that day, and Ryounkaku and Kamihoroso remain open outside the restricted zone. The Kamifurano town website posts the current level.
Sources
- Hotel Kanronomori, tattoo policy and baths: https://www.kanronomori.com/faq.html and https://www.kanronomori.com/onsen.html
- Niseko Grand Hotel, bathing rules and tattoo policy: https://niseko-grand.com/onsen/
- Hoshino Resorts Tomamu, Kirin-no-Yu: https://www.snowtomamu.jp/winter/spa/kirin.php
- New Furano Prince Hotel, Shisai-no-yu terms: https://www.princehotels.co.jp/shinfurano/facility/onsen/
- Rankoshi town, Yukichichibu: https://www.town.rankoshi.hokkaido.jp/administration/tourism/detail.html?content=285
- Yukoro Onsen payment details via SkiJapan: https://www.skijapan.com/?p=253547
- Kiranoyu, facilities and private bath: https://kiranoyu.com/eigyo.html
- Onsen Oni tattoo guide and listings: https://onsenoni.com/en/guides/tattoo, https://onsenoni.com/en/places/xk7xcyz8i9-kawayu-koshu-yokujo-yukichi, https://onsenoni.com/en/places/2qqwkmgiaz-kurodake-no-yu-public-onsen, https://onsenoni.com/en/places/0x6h3l77zx-kangetsuen
- Kamifurano tourism association, Fukiage Roten-no-yu: https://www.kamifurano.jp/archives/facility_item/582
- Kamifurano town, Tokachidake volcanic alert: https://www.town.kamifurano.hokkaido.jp/index.php?id=6400
- Japanese Wikipedia, Goshiki Onsen and Kawayu Onsen chemistry: https://ja.wikipedia.org/wiki/五色温泉_(北海道) and https://ja.wikipedia.org/wiki/川湯温泉_(北海道)
- Japanese Wikipedia, Kotan Onsen: https://ja.wikipedia.org/wiki/コタン温泉
- Dai-ichi Takimotokan, spring types: https://takimotokan.co.jp/ja/spa/
We write from operators’ and agencies’ own pages, open map data and published research, and we date every fact we check. How we research.