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Hot Springs Brief

Arima Onsen Kin no Yu

Near Arima Onsen (Kobe), Hyogo Prefecture, Japan

Arima's city-run gold bathhouse in central Kobe's hot spring town, serving the salty, iron-rich kinsen water that turns rust-brown in the air. It reopened on March 17, 2026 after a two-month refit.

Photo: hy95tg (CC BY 3.0). Resized and cropped for this page.

Water temperature
Not published
Entry
Paid
Getting in
Drive-up
Type
Public pool
  • Serves kinsen, Arima's strongly salty, iron-bearing water, which comes up clear and turns brown almost at once.
  • Entry is ¥800, or ¥650 on ordinary weekdays, and a ¥1,200 ticket also covers Gin no Yu up the hill.
  • The Taiko no Ashiyu footbath outside the door is free during opening hours.
  • Closed January 7 to March 16, 2026 for new tanks, pipes, boilers and air conditioning; back to normal hours since March 17.

What to expect

Kin no Yu is the busier of the two public bathhouses in Arima Onsen, the old hot spring town in Kita Ward on the north side of Kobe. It sits in the middle of the old town and is the place many day-trippers from Kobe and Osaka go first. Kobe city owns it and calls it Arima Hon-onsen Kin no Yu.

It is a plain, well-run public bath, not a spa. You pay, leave your shoes, change, wash, and soak. The bathing rooms are split by gender. The operator names the two rooms Ichi no Yu, decorated around bamboo (the material behind Arima’s traditional baskets and doll-headed calligraphy brushes), and Ni no Yu, themed on the maples of nearby Zuihoji Park. Expect brown water, washing stations and not much else.

There is also a small rest corner with snacks for ¥100, bottles of local Arima Cider, a foot massage machine (¥100) and a massage chair (¥200).

The building has deep roots. Arima’s tourism association notes that the bathhouse on this spot appears in Edo-period records as a cypress-roofed building with two wings, which stood until 1883 and was rebuilt in Western style in 1884. The current building is modern.

The water

Arima is famous for two waters. Kinsen (“gold spring”) is what Kin no Yu serves. The operator lists it as an iron-bearing sodium chloride spring, strongly saline and high-temperature. It is clear when it first rises, then clouds to a rust-brown almost straight away as the iron meets the air. It tastes very salty, bitter and metallic. You cannot drink it here.

The operator publishes how the water is handled, which not every bath does:

  • Flow-through: the tubs are fed and drained rather than recirculated.
  • Water added: the source is too hot for bathing, so tap water and well water are mixed in.
  • Heated: steam heating then brings the temperature back up after the added water cools it.
  • No additives are used.
  • Chlorinated during opening hours for hygiene.
  • Cleaning: the tubs are completely drained and cleaned every day.

So this is real kinsen, diluted and adjusted to bathing temperature, not raw spring water. It still stains towels, and the colour is the main reason people come.

The clear water, ginsen (carbonated and radium springs), is served at Gin no Yu, a few minutes uphill.

Prices and booking

Prices in October 2026, tax included:

  • Adults: ¥800. On ordinary weekdays ¥650, but not over New Year, Golden Week, Obon or other busy days.
  • Children (elementary and junior high school): ¥350.
  • Preschoolers: free.
  • Two-bath ticket (Kin no Yu and Gin no Yu): ¥1,200. A version that includes a towel is sold on weekdays. Multi-bath tickets are valid for a year from the date of purchase.
  • Disability certificate holders: ¥400, plus one adult carer at ¥400. Show the certificate at the desk.

The operator lists accepted cashless payment methods at the counter. There are no reservations. On crowded days staff may hold people at the door until there is room.

Body soap, rinse-in shampoo and hair dryers are provided. Towels, bath towels, razors and toothbrushes are on sale, so bring your own towel to save a little money. Use a dark one.

Onsen etiquette

Standard Japanese public bath rules apply:

  • Wash and rinse thoroughly at the seated taps before getting in.
  • Bathe naked. Swimsuits are not used, and towels stay out of the water.
  • Tie up long hair so it does not touch the water.
  • No photos in the changing rooms or baths.
  • Rinse your stool and bucket after use.

The official page does not state a tattoo policy. Ask at the desk or call 078-904-0680 before you buy a ticket.

Getting there

Kin no Yu is at Arima-cho 833, Kita-ku, Kobe.

  • By train: take the Kobe Municipal Subway from Sannomiya to Tanigami, then the Kobe Electric Railway (Shintetsu) via Arimaguchi to Arima Onsen Station, about 30 minutes in all. From the station, walk through the old town to Kin no Yu.
  • By bus: the Arima Express bus runs from Shin-Kobe and Sannomiya.
  • By car: the official page lists no parking for Kin no Yu. Park in one of the town’s pay car parks and walk, because the lanes around the bathhouse are narrow and crowded.

When to go

Kin no Yu opens daily from 8:00 to 22:00, with last entry at 21:30, except on the 2nd and 4th Tuesdays and New Year’s Day. When a closing Tuesday falls on a public holiday it opens and closes the following day. It sometimes swaps a closing day too (for example, it closed on Thursday, September 24, 2026 in place of a holiday opening), so check the notices on the official site.

Early weekday mornings are the quietest and cheapest time. Weekend afternoons, autumn leaf season and holiday weeks bring queues.

The 2026 refit. Kobe city closed the bathhouse from January 7, 2026 to renew its storage tanks, hot water supply pipes, shower plumbing, air conditioning and boilers. It reopened at 8:00 on March 17, 2026. During the work, Gin no Yu stayed open and even opened on one of its usual closing days to take up the slack.

In summer 2026 (August 1 to September 30) the operator ran a heat program: a lukewarm footbath at about 82°F28°C, menthol shampoo and body soap in the baths, and a mist shower at the entrance from 10:00 to 16:00. Expect something similar in future hot summers.

The free footbath

Right beside the entrance is Taiko no Ashiyu, a free footbath of kinsen water. It keeps Kin no Yu’s opening hours and closing days. The operator says it adds tap water to stretch the supply, warms it by heat exchanger, and does not chlorinate it. Fifteen minutes with your feet in is enough to warm you up on a winter day, and it is a good stop if you are short on time. It reopened on February 17, 2026, a month before the main bath.

Where to stay nearby

Kin no Yu has no rooms. Arima Onsen has dozens of ryokan and hotels, from small inns on the lanes to large hotels on the hillsides, and many sell day bathing as well. Some rent private family baths, which suit anyone unsure of the tattoo rules. Central Kobe and Osaka are close enough to make Arima a day trip.

Nearby stops worth adding

  • Gin no Yu: the clear-water bathhouse, a few minutes uphill. The two-bath ticket covers it.
  • Taiko no Yudono-kan: a small city museum next door, built over the remains of a bath complex linked to Toyotomi Hideyoshi that was uncovered after the 1995 Great Hanshin earthquake.
  • Spring sources and temples: the lanes above Kin no Yu lead past spring sources and old temples. See our Arima Onsen guide for the wider town.

Safety notes

  • Strong salt water: kinsen is very saline and leaves skin feeling coated. Rinse off before you dress, keep it out of your eyes, and drink water afterwards.
  • Heat: the hot tub runs hot. Keep soaks short and stand up slowly.
  • Alcohol: do not bathe after drinking.
  • Staining: the iron stains towels and light fabric.
  • Slippery lanes: Arima’s streets are steep and can be slick in rain. Wear proper shoes for the walk from the station.

Map and nearby springs

GPS: 34.79679, 135.24793

Arima Onsen Kin no Yu: common questions

How much does Kin no Yu cost?
When is Kin no Yu closed?
Is Kin no Yu open again after the 2026 renovation?
Is the water at Kin no Yu straight from the spring?
Are tattoos allowed at Kin no Yu?
What is the difference between Kin no Yu and Gin no Yu?

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