Niigata · Iwamuro Onsen, Niigata
Iwamuro Onsen Yorinare
岩室温泉 遊雁の湯 よりなれ
A city-run day spa (Niigata City Iwamuro Health Promotion Centre) at Iwamuro Onsen, a spa at the eastern foot of Mt. Yahiko in Niigata's Nishikan ward, often called 'Niigata's back parlour'. Set on a rise at the edge of the spa town, its main bath and open-air bath look out over the Echigo plain toward Mt. Kakuda and Mt. Yahiko. The indoor pool is heated tap water, but the small rock-lined outdoor tub is fed with rich, free-flowing sulfur-bearing sodium-calcium chloride spring (hypertonic, mildly alkaline) whose faint sulfur scent and floating mineral flakes feel unmistakably like real onsen. Admission is ¥650 for adults and ¥390 for children, and a face and bath towel set is included, so arrive empty-handed. Open 10:00–20:00 (last entry 19:30), closed the second and fourth Wednesdays (next day if a holiday) and 29 December to 3 January. An upstairs lounge allows re-entry, and there are rental rooms and a snack corner; free parking for 80 cars. About 10 minutes by car from Iwamuro Station on the JR Echigo Line or 20 minutes from Maki-Katahigashi IC. Pair it with Yahiko Shrine and Niigata's sake breweries.
- Price (adult)
- ¥650
- Hours
- 10:00–20:00
- Closed
- 2nd & 4th Wednesdays (next day if holiday); Dec 29–Jan 3
- Access
- About 10 min by car from Iwamuro Station (JR Echigo Line); about 20 min by car from Maki-Katahigashi IC on the Hokuriku Expressway; about 50 min by car from JR Niigata Station
- Water type
- Sulfur spring
- Tattoos
- Ask ahead
- Phone
- 0256-82-2270
- Official site
- niigata-kankou.or.jp/spot/11595 ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Iwamuro Onsen, Niigata. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Hilltop city spa with Echigo plain and Yahiko views
- Rich free-flowing sulfur spring in the outdoor tub
- ¥650 incl. towel set – come empty-handed
Before you go
- No official tattoo policy is published — ask at reception.
- The water runs hot (43–45°C). Don't add cold water; take short repeated dips instead.
- Payment is usually by ticket machine in cash — bring coins.
- Last entry is 30–60 minutes before closing.
Features
Mood & scenery
Price
Who with
Amenities
✔ Verified operating: 2026-09 にいがた観光ナビ（大人650円 子ども390円・10–20時・第2・4水曜 年末年始休）／スーパー銭湯全国検索 2025-11（タオル込・受付19:30・駐車80台）
Prices and hours change. Check official sources before visiting.
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