OnsenQuest

Prefectures / Yamagata

Zao Onsen Dai-Rotenburo

蔵王温泉大露天風呂 · Zao Onsen

Policy not published (day visit)

Can you bathe here with a tattoo?

This is the question we built the site around, so we answer it per situation.

Visiting for the day

They have not said

The tattoo policy is not stated publicly. Please contact the facility.

How it scores

Every onsen on this site is scored on the same five things.

ViewWaterComfortSettingAccess

Rated from research

View4.5
Water5
Comfort2.5
Setting5
Access3
×Somewhere to sitBathe and leave
Anything else nearbyNearby, but off to one side

Stone tubs stepped down a mountain stream in a beech ravine, holding Zao's very strongly acidic sulphur water - one of the few open-air baths in Tohoku where the setting alone justifies the trip. Facilities are minimal, the acid stings cuts and bleaches jewellery, and it shuts for the whole ski season, so check the dates before walking up from the village.

Scored from official photos, maps and transport information — not from a visit.

The baths

Open-air bath

Terraced stone tubs stepped down a mountain stream in a beech ravine, gender-separated, holding Zao's very strongly acidic sulphur water. The operator publishes seven cautions for bathing in strongly acidic water - it stings cuts and can bleach jewellery and swimwear.

Open to day visitors

Practical details

Day visits
Yes — you can bathe without staying overnight.
reception 9:00-17:00; night bathing 18:30-21:00 (last entry 20:30) in the summer season
Day visit price
¥850
Adults 850 yen, children aged 1-12 400 yen for the daytime session. The night session (planned June to early October 2026) is 1,000 yen for adults and 500 yen for children, and discount or accommodation vouchers are not valid for it. This is a seasonal bath: the 2026 season opened on 25 April, with maintenance closures on 4 June and 13 July, and it does not run in the deep winter.
Staying overnight
No
Getting there
Above the Zao Onsen village in Yamagata, uphill from the bus terminal served by buses from JR Yamagata Station; it is a walk or a short drive up the ravine. Closed for the winter ski season, when the village's indoor baths and the ski slopes take over.
Official website
www.jupeer-zao.com/roten

Visit the official website ↗

Staying nearby

What we have not confirmed

We would rather show a gap than guess.