Of the 15 facilities on the Shimabara Peninsula in Nagasaki where you can bathe on a day trip, the cheapest are the public baths in Obama Onsen: Hama-no-Yu is ¥150 for residents of Unzen City and ¥300 for people from outside, and Wakihama Onsen Yokujo is ¥200. For early mornings, Hotel Nampuro in Shimabara Onsen (from 5:00 a.m. from April to November), Wakihama Onsen Yokujo and Hama-no-Yu in Obama (from 6:00 a.m.) and Unzen Toyokan (morning bath from 7:00 to 10:00) are open. At night, the seaside private bath Nami-no-Yu “Akane” and YUASOBI in Obama are open until 23:00. This page compares the prices, reception hours, closing days and private baths in the 3 hot spring areas of Unzen, Obama and Shimabara.
In short
- Cheapest: Hama-no-Yu (¥150 for Unzen City residents, ¥300 for others) and Wakihama Onsen Yokujo (¥200), both in Obama.
- Early and late: Hotel Nampuro (5:00 a.m. to 23:00 from April to November), Unzen Toyokan (7:00 to 10:00 and 15:00 to 24:00), Akane and YUASOBI (10:00 to 23:00).
- Private baths for your own group: Akane (¥3,000 for 50 minutes, up to 4), YUASOBI (from ¥3,000 for 1 hour), Unzen Yokayu family baths and Juraku.
- Milky white sulfur water: Unzen Kojigoku Onsenkan (¥500 for adults), Seiunso, Unzen Yokayu and Unzen Fukudaya.
Checked with official pages on October 18, 2026 (Japan time). Prices and hours may change.
Note: In Japan, onsen baths are normally separated by gender and you bathe without a swimsuit. A private bath (kashikiri-buro) is a room you rent for your own group.
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1. How to choose: price, hours and private baths
- For a low price: Hama-no-Yu in Obama (¥150 for residents, ¥300 for others) and Wakihama Onsen Yokujo (¥200). Shimabara Onsen Yutorogi-no-Yu in Shimabara is ¥530 for the general public, and ¥320 for people aged 70 and over.
- For milky white sulfur water: Unzen Kojigoku Onsenkan in Unzen Onsen (¥500 for adults), Seiunso, Unzen Yokayu (pH 2.3) and Unzen Fukudaya (pH 2.4).
- Early morning and late night: Hotel Nampuro (5:00 to 23:00, from 6:00 from December to March), Unzen Toyokan (7:00 to 10:00 and 15:00 to 24:00, last reception 22:00), Akane and YUASOBI (10:00 to 23:00).
- With your own group only: Akane (¥3,000 per group, 50 minutes, up to 4), YUASOBI (from ¥3,000 for 1 hour), a family bath at Unzen Yokayu (¥1,400 for 1 hour plus the bath fee) and the private bath at Juraku (¥2,200 for 50 minutes, up to 3 adults).
2. 15 day-use baths compared by price, reception hours and closing days
The bath fee for 1 adult runs from ¥150 at Hama-no-Yu in Obama (for Unzen City residents) to ¥2,000 on weekends and holidays at Hotel Nampuro. Prices follow what each facility and the Obama Onsen Ryokan Association officially show. For inns that open only a private bath to day visitors, the price of the private bath is in the price column.
| Facility | Price (adult / child) | Hours (last reception) | Closed | Towels, private bath |
|---|---|---|---|---|
| Unzen Kojigoku Onsenkan | Adult ¥500, elementary school and under ¥250 (free for age 3 and under) | 9:30 to 19:00 | Wednesdays (open on public holidays) | — |
| Seiunso | Adult ¥880, elementary school and under ¥440 (free for age 3 and under) | 11:00 to 18:00 | — | Towel ¥200, bath towel ¥200; private bath ¥2,500 per room (50 minutes) plus the bath fee |
| Unzen Toyokan | Weekdays ¥700, weekends and holidays ¥1,000, peak days ¥1,200 / elementary school and infants ¥450 to ¥540 (free under 3) | 7:00 to 10:00, 15:00 to 24:00 (last reception 22:00) | — | Towel rental ¥330 |
| Unzen Fukudaya | Day-use private baths ¥1,000 and ¥1,500 per person (children half price, free under 3) | — | — | 2 private baths (50 minutes each) |
| Unzen Yokayu | General ¥550, members ¥450, children ¥250 | — | — | Family bath ¥1,400 (1 hour, 1 room) plus the bath fee |
| Wakihama Onsen Yokujo | ¥200 | 6:00 to 21:00 | — | Towel rental available |
| Hama-no-Yu | Residents ¥150, non-residents ¥300 / children (age 6 to under 12) ¥100 | 6:00 to 22:00 | — | — |
| Boyoso | Adult ¥550, child ¥275, infant ¥110 | 7:30 to 22:00 (reception ends 21:30) | — | — |
| Ryokan Kunisaki | Indoor bath ¥500 | 12:00 to 20:00 | — | Private bath ¥1,000 (1 person), towel rental available |
| Juraku | Adult ¥700, child (age 3 to elementary school) ¥300 | 13:00 to 21:00 (last reception 20:00) | — | Bath towel ¥200, private bath ¥2,200 for 50 minutes |
| Yamadaya | Indoor bath ¥500, viewing open-air bath ¥800, private viewing open-air bath ¥1,000 | 15:00 to 20:00 | — | Towel rental available |
| Nami-no-Yu “Akane” | ¥3,000 per group (50 minutes, up to 4) | 10:00 to 23:00 (last reception 22:00, reservation required) | — | No towels |
| YUASOBI | From ¥3,000 for 1 hour, from ¥5,000 for 2 hours (up to 4) | 10:00 to 23:00 (last booking 22:00, same-day booking possible) | — | Towels sold |
| Shimabara Onsen Yutorogi-no-Yu | General ¥530, elementary school and under ¥270 (free under 3), age 70 and over ¥320 | 10:00 to 21:00 (reception until 20:30) | Wednesdays | — |
| Hotel Nampuro | Weekdays ¥1,300, weekends, holidays and special days ¥2,000 (junior high school and older) / age 3 to elementary school ¥600 | 5:00 to 23:00 (from 6:00 from December to March); the men’s or women’s bath is cleaned 11:00 to 12:00 | — | Face towel ¥100, bath towel ¥200 |
A “—” in the table means no information was found on the official pages.
3. Unzen Onsen: day-use baths (Obama-machi Unzen, Unzen City)
This hot spring area sits in the mountains at an altitude of 700 meters, and the water is milky white sulfur water.
Unzen Kojigoku Onsenkan
For a cheap day-use bath in Unzen, Unzen Kojigoku Onsenkan, about 3 minutes on foot from Seiunso, is ¥500 for adults and ¥250 for elementary school children and under, and free for age 3 and under. It is open from 9:30 to 19:00. It is closed every Wednesday, but open if the day is a public holiday. The water is shown as a simple sulfur spring (hydrogen sulfide type), hypotonic, weakly acidic and high-temperature.
Official page: Unzen Kojigoku Onsenkan (Seiunso official site) (Japanese)
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Seiunso
The inn Seiunso also accepts day visitors, with no reservation needed. The open-air bath and the large bath are ¥880 for adults and ¥440 for elementary school children and under (free for age 3 and under), from 11:00 to 18:00. A private bath is ¥2,500 per room (50 minutes, plus the bath fee), last reception is 17:00, and day visitors cannot reserve in advance. Towels and bath towels are ¥200 each.
Official page: Seiunso day-use page (Japanese)
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Unzen Toyokan
Unzen Toyokan runs in 2 sessions, from 7:00 to 10:00 in the morning and from 15:00 to 24:00 (last reception 22:00), and is an inn where you can take a morning bath in Unzen. No reservation is needed. The price varies by day: adults ¥700 on weekdays, ¥1,000 on weekends and holidays and ¥1,200 on peak days, elementary school children and infants ¥450 (¥540 on peak days), and free under 3. Towels can be rented for ¥330.
Official page: Unzen Toyokan day-trip guide (Japanese)
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Unzen Fukudaya
Unzen Fukudaya opens its private baths to day visitors: Hi-no-ki-no-Yu is ¥1,500 per person and Santaro-no-Yu ¥1,000 per person. Both are 50 minutes, children are half price and children under 3 are free. The water is described as a simple acidic sulfur-iron (II) spring with a pH of 2.4.
Official page: Unzen Fukudaya hot spring page (Japanese)
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Unzen Yokayu
Unzen Yokayu, a day-use hot spring and room-only inn, charges ¥550 for the large bath (¥450 for members and ¥250 for children). There are 6 family baths, at ¥1,400 per room for 1 hour plus the bath fee (¥550 for adults and ¥250 for children). The water is free-flowing from its own source, a simple sulfur spring with a pH of 2.3. There is also a kids’ space for people who have bathed (¥230 per person).
Official page: Unzen Yokayu prices, reservations and access page (Japanese)
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4. Obama Onsen: day-use baths (Obama-machi, Unzen City)
This seaside hot spring area faces Tachibana Bay, with source water of nearly 100°C. For a low price, use a public bath; for a family, use an inn or the seaside private baths.
Wakihama Onsen Yokujo
Wakihama Onsen Yokujo, a public bath in Obama, is ¥200 and open from 6:00 to 21:00. It has been a public bath since 1937, and towels can be rented.
Official page: Obama Onsen Ryokan Association page on Wakihama Onsen Yokujo (Japanese)
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Hama-no-Yu
Hama-no-Yu, a city-run public bath at the entrance of the hot spring town, is ¥150 per visit for people living in Unzen City, ¥300 for people from outside, and ¥100 for children aged 6 to under 12. It is open from 6:00 to 22:00.
Official page: Obama Onsen Ryokan Association page on Hama-no-Yu (Japanese)
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Boyoso
The national lodge Boyoso is ¥550 for adults, ¥275 for children and ¥110 for infants, from 7:30 to 22:00 (reception ends 21:30). Besides the large bath it has an open-air bath, a water-massage bath and a jet bubble bath, and shampoo, conditioner, body soap and hair dryers are provided.
Official page: Obama Onsen Ryokan Association page on Boyoso (Japanese)
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Ryokan Kunisaki
Ryokan Kunisaki charges ¥500 for the indoor bath and ¥1,000 per person for each of 3 private baths (open-air, stone and hinoki cypress), from 12:00 to 20:00. Towels can be rented.
Official page: Obama Onsen Ryokan Association page on Ryokan Kunisaki (Japanese)
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Juraku
The large bath at Juraku is ¥700 for adults and ¥300 for children (age 3 to elementary school), from 13:00 to 21:00 (last reception 20:00). The adult price became ¥700 on January 1, 2026. A small sauna and a cold plunge can also be used on a day visit. The private bath at Juraku is ¥2,200 for 50 minutes (up to 3 adults), by reservation by phone. A bath towel can be rented for ¥200 and towels are sold for ¥100. Some plans include a Japanese-style rest room, and hours may be shorter during New Year, Golden Week, Obon and similar periods.
Official page: Juraku day-use hot spring page (Japanese)
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Yamadaya
Yamadaya is open from 15:00 to 20:00, at ¥500 for the indoor bath and ¥800 for the viewing open-air bath “Irihi-no-Yu”. A “private viewing open-air bath” using this open-air bath is listed at ¥1,000, but it may not be usable on some days depending on the number of overnight guests, and the page says to ask the inn on the day.
Official page: Obama Onsen Ryokan Association page on Yamadaya (Japanese)
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Nami-no-Yu “Akane”
The private open-air bath at the water’s edge, Nami-no-Yu “Akane”, is ¥3,000 per group (50 minutes, up to 4 people), by reservation, from 10:00 to 23:00 (last reception 22:00). At high tide the difference from the sea surface is about 20 cm. Towels are not provided.
Official page: Obama Onsen Ryokan Association page on Nami-no-Yu “Akane” (Japanese)
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YUASOBI
YUASOBI, a coin-operated private hot spring at the same marina, is from ¥3,000 for 1 hour and from ¥5,000 for 2 hours for up to 4 people, with ¥500 added per person beyond 4. It has a steam sauna, and you can book and bathe on the same day. Reception is from 10:00 to 23:00 (last booking 22:00), and towels are sold.
Official page: Obama Onsen Ryokan Association page on YUASOBI (Japanese)
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5. Shimabara Onsen: day-use baths (Shimabara City)
Shimabara Onsen Yutorogi-no-Yu
Shimabara Onsen Yutorogi-no-Yu, run by Shimabara City, is ¥530 for the general public, ¥270 for elementary school children and under, free under 3, and ¥320 for people aged 70 and over and people with a physical disability certificate or similar. It is open from 10:00 to 21:00 (reception until 20:30) and closed every Wednesday. Besides the free-flowing large bath it has a medicinal bath, a cold plunge and a sauna.
Official page: Shimabara City page on Yutorogi-no-Yu (Japanese)
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Hotel Nampuro
The seaside Hotel Nampuro takes day visitors from early morning: from 5:00 from April to November and from 6:00 from December to March, until 23:00 in both cases. The price is ¥1,300 on weekdays for junior high school students and older, ¥2,000 on Saturdays, Sundays, holidays and special days (Golden Week, Obon, New Year and consecutive holidays), and ¥600 for ages 3 to elementary school. From 11:00 to 12:00 it is cleaned, and the men’s bath cannot be used on Monday, Wednesday and Friday and the women’s bath on Tuesday, Thursday and Saturday. A face towel can be rented for ¥100 and a bath towel for ¥200. The water is shown as a magnesium-sodium bicarbonate spring.
Official page: Hotel Nampuro hot spring and open-air bath page / Hotel Nampuro day-use page (Japanese)
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6. Day-use baths in Kumamoto and Oita
The other prefectures in Kyushu are listed in the same form. For Kurokawa, Aso, Hitoyoshi, Yamaga and Tamana, see day-use baths in Kumamoto (Japanese), and for Beppu, Yufuin, Nagayu, Amagase and Hita, see day-use baths in Oita (Japanese).
7. Photos (courtesy of Obama Onsen Juraku)
These photos were given to us by Obama Onsen Juraku.
Common questions
Which bath is the cheapest?
Hama-no-Yu in Obama is ¥150 for Unzen City residents and ¥300 for others. Wakihama Onsen Yokujo is ¥200.
Which baths can I use early in the morning?
Hotel Nampuro (from 5:00 a.m. from April to November), Wakihama Onsen Yokujo and Hama-no-Yu (from 6:00), and Unzen Toyokan (7:00 to 10:00).
Which baths are private?
Akane (¥3,000 per group for 50 minutes), YUASOBI (from ¥3,000 for 1 hour), the family baths at Unzen Yokayu and the private bath at Juraku (¥2,200 for 50 minutes).
Sources
17 pages we checked
- Unzen Kojigoku Onsenkan (Seiunso official site)
- Seiunso day-use page
- Unzen Toyokan day-trip guide
- Unzen Fukudaya hot spring page
- Unzen Yokayu prices, reservations and access page
- Obama Onsen Ryokan Association page on Wakihama Onsen Yokujo
- Obama Onsen Ryokan Association page on Hama-no-Yu
- Obama Onsen Ryokan Association page on Boyoso
- Obama Onsen Ryokan Association page on Ryokan Kunisaki
- Juraku day-use hot spring page
- Obama Onsen Ryokan Association page on Yamadaya
- Obama Onsen Ryokan Association page on Nami-no-Yu “Akane”
- Obama Onsen Ryokan Association page on YUASOBI
- Shimabara City page on Yutorogi-no-Yu
- Hotel Nampuro hot spring and open-air bath page
- Hotel Nampuro day-use page
- Japanese version of this page (日本語版)
Checked with official pages on October 18, 2026 (Japan time).
