Arima Onsen
有馬温泉
One of Japan's three oldest hot spring towns: two distinct spring types, 30 minutes from Kobe, with ryokans that have been operating for centuries
About Arima Onsen
Arima Onsen is a hot spring town in the mountains north of Kobe, documented as a bathing destination since at least the 7th century AD, making it one of the oldest onsen resorts in Japan alongside Kusatsu and Gero. The town is unusual in having two chemically distinct spring types emerging within a few meters of each other. Kinsen (gold springs) are reddish-brown from high concentrations of iron and sodium chloride; the color transfers visibly to bathtubs and skin and the smell is mineral-rich. Ginsen (silver springs) are clear and mildly carbonated, gentler and more commonly encountered at other onsen resorts. Two public bath houses, Kinnosyu (gold spring, ¥800) and Ginnosyu (silver spring, ¥550), allow day visitors without a ryokan reservation. The town itself is small enough to walk in 30 minutes: a single main shopping street with craft shops, snack stalls, and cafes runs between the two public bath houses. Ryokans in Arima range from historic multi-generational properties to modern facilities, and most have private baths using the genuine kinsen water.
Essential Tips
Check the Kinnosyu and Ginnosyu closure schedules before going: each closes on different Tuesdays of the month. Check the official Arima Onsen Tourism Association website
Bring a small towel. The public baths rent towels (¥220-300 for small, ¥300-500 for large). The kinsen (gold spring) water stains white towels, so use the rental ones
The kinsen water is reddish-brown and visibly different from any other onsen you are likely to encounter. The iron and salt content feels warming long after leaving the bath
Eat before entering the baths or between the two public bath visits. Bathing immediately after a large meal is uncomfortable
The town is small enough to cover in 2 hours as a day trip. But an overnight stay in a kinsen ryokan is the reason Arima has been a destination for 1,400 years. One night makes the difference
Autumn (October-November) is the most atmospheric season: the forested mountain setting turns red and orange and the contrast of the hot spring steam against cool mountain air is pronounced
Kobe Electric Railway to Arima Onsen: 25 minutes from Tanigami (transfer from Kobe City Subway). The train ride through the hills is pleasant and the station puts you 5 minutes from the baths
Weekend day visitors from Kobe and Osaka fill the town from late morning. Arrive by 9 AM or after 3 PM if visiting on a weekend to avoid the peak crowd at the public baths
Don't Miss
Kinnosyu Gold Spring Bath
Kinnosyu is the public bath house using the kinsen (gold spring) water. The water is distinctly reddish-brown and leaves mineral deposits on the tiles and tubs. The high sodium chloride and iron content means the water feels warming from the inside. The skin-reddening effect is more noticeable than in most other onsen types. The bath house is simple and functional: shoe lockers, changing rooms, large communal baths. No frills, but the spring water is the genuine kinsen experience. ¥800 entry, towel rental available.
Ginnosyu Silver Spring Bath
The Ginnosyu uses silver spring water, which is clear and mildly carbonated. The carbon dioxide content makes the water feel slightly tingly on the skin and the bath appears to effervesce slightly at high concentrations. The silver spring is rarer globally than the iron-salt springs and is the feature most unusual about Arima. Entry ¥550. The building is newer and slightly more modern than the Kinnosyu.
Arima Town Walk
The town's main shopping street, Arima Honmachi, runs between the two public bath houses and takes about 20 minutes to walk at browsing pace. The shops sell Arima craft products (Arima ningyo doll, bamboo craft, gold-spring-infused cosmetics), senbei crackers made with spring water, and various food stalls. The narrow side streets between the ryokan buildings give a sense of the town's Edo-period layout. Early morning before shops open, the town has a distinctly old-Japan atmosphere.
What to Do Here
Arima Day Trip from Kobe
Take the Kobe City Subway from Shin-Kobe to Tanigami, then the Kobe Electric Railway to Arima Onsen (total approximately 45 minutes). Walk the main street for 20-30 minutes, buying local snacks (¥200-500 per item) as you go. Enter the Kinnosyu for the gold spring bath (¥800, allow 45-60 minutes including changing). Then enter the Ginnosyu for the silver spring bath (¥550, 30 minutes). Lunch at one of the town's restaurants (tonkatsu or Kobe beef options available, ¥1,200-2,500). Return to Kobe by train.
Tips:
- Check both public bath closure schedules on the official websites before going; each closes on different Tuesdays
- Bring or buy a small towel (¥220-300 at the bath houses); large towels are usually ¥300-500 rental
- The kinsen (gold spring) water stains white towels and clothing brown if the spring water gets on them. Use the rental towels
- Lockers at both bath houses are coin-operated (¥100-200 deposit returned)
- Eat before bathing or between the two baths: bathing on a full stomach is uncomfortable
Arima Onsen Overnight Stay
An overnight ryokan stay is the optimal Arima experience. Check in at 3-4 PM, use the private or communal onsen before the kaiseki dinner, sleep on tatami with futon, and use the morning bath before checkout at 10-11 AM. Ryokans with kinsen water in their baths are the priority; confirm this when booking as some Arima ryokans use ginsen only or heat-treated water. Evening meals at most ryokans are kaiseki style and substantial.
Tips:
- Book 1-2 months ahead for autumn and spring weekends; holiday periods fill much earlier
- Ask specifically whether the ryokan's in-house onsen uses direct kinsen (source water) when booking, as some use piped or blended water
- Mid-week stays cost significantly less than weekend rates
- If budget is a concern, stay at a smaller ryokan in Arima and use the public bath houses; do not stay in Kobe and day-trip to Arima for the bath only. The overnight experience is what Arima is for
Plan Your Visit
Opening Hours
kinnosyu
8:00 AM – 10:00 PM (closed the 2nd and 4th Tuesday of each month)
ginnosyu
9:00 AM – 9:00 PM (closed the 1st and 3rd Tuesday of each month)
note
Check both closures before visiting: if both happen to be closed on the same day, the public bath experience requires a ryokan visit. Ryokans have varied hours for day bathing.
Best Time to Visit
Weekday morning for the public baths with fewer crowds. Autumn (October-November) for the forested mountain setting. Winter for the contrast between cold air and hot mineral water.
Avoid:
Weekend and national holiday afternoons. The small town becomes congested and the public bath queues extend significantly.
Nearby
Kinnosyu (Gold Spring Bath)
Main public gold spring bath house, ¥800. In the center of town.
0.1 km
Ginnosyu (Silver Spring Bath)
Public silver spring bath house, ¥550. 3 minutes' walk from Kinnosyu.
0.2 km
Shin-Kobe Station
Sanyo Shinkansen stop. 30 minutes by taxi or 45 minutes by train (subway + Kobe Electric Railway).
15 km
Sannomiya (Kobe city center)
Kobe's main commercial district. 45-50 minutes by train via Tanigami.
15 km
Gallery
Arima Onsen: a hot spring town in the mountains north of Kobe, documented since 631 AD
Kinnosyu: the gold spring bath house, reddish-brown water from iron and sodium chloride minerals
The main street: 20 minutes from end to end, craft shops, food stalls, ryokan facades
Arima ryokan: most have private kinsen baths and kaiseki dinner service
History
founding
Arima Onsen is one of Japan's three oldest onsen towns. According to the Nihon Shoki (Japan's 8th-century chronicle), Emperor Jomei visited Arima to bathe in 631 AD. The town was also favored by Emperor Kotoku and Prince Shotoku in the 7th century. The Buddhist monk Gyoki is credited with developing the town's infrastructure in the 8th century, and the springs became a regular destination for the Kyoto court during the Heian period. Toyotomi Hideyoshi visited Arima repeatedly in the late 16th century and his patronage established its reputation as the premier hot spring retreat for Japan's ruling class.
significance
Arima is one of only a few places in the world where gold (iron-chloride) and silver (carbonated) springs emerge within a small area. The geological explanation involves the collision of the Philippine Sea Plate and the Eurasian Plate: different rock layers are penetrated by groundwater at different depths and temperatures, producing chemically distinct springs from adjacent fissures. This geological combination is the primary reason Arima has been continuously occupied as a hot spring resort for over 1,400 years.
name Origin
Arima (有馬) is written with characters meaning 'have' (有) and 'horse' (馬). The name predates the use of Chinese characters for Japanese place names and the current characters are believed to be phonetic rather than semantic: 'arima' was the original place name and the characters were chosen for sound, not meaning.
Getting There
Kobe City Subway + Kobe Electric Railway
Station: Arima Onsen Station (Kobe Electric Railway Arima Line)
Exit:
Walk: 5 minutes from station to main public bath area
Take the Kobe City Subway Seishin-Yamate Line from Shin-Kobe Station to Tanigami (about 20 minutes). Transfer to the Kobe Electric Railway Arima Line and ride to Arima Onsen terminus (about 25 minutes). Total journey approximately 45 minutes.
Taxi from Shin-Kobe Station
Station: Shin-Kobe Station (Sanyo Shinkansen)
Exit:
Walk: Direct to town center
About 30 minutes by taxi over the Rokko mountain range. Faster than the train but significantly more expensive. Practical for groups of 3-4 splitting the fare, or when carrying luggage for an overnight stay.
Highway Bus from Osaka/Umeda
Station: Hankyu Umeda Station (Osaka)
Exit:
Walk: 5 minutes from Arima Onsen bus stop to main bath area
Highway buses run directly from Hankyu Umeda (Osaka) and Osaka Station to Arima Onsen. Journey about 60-75 minutes. Convenient for visitors arriving from Osaka without going through Kobe.
Location
Arima-cho, Kita-ku, Kobe, Hyogo 651-1401
Nearest: Arima Onsen Station (Kobe Electric Railway Arima Line) (5 minutes from Arima Onsen Station to the main public bath area)
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