Olive Onsen Manten no Yu: Hot Spring Guide & Prices

This day-trip natural hot spring stands in Tonosho, the gateway town of Shodoshima. Close to the port, it is easy to drop into while waiting for a ferry or between sightseeing stops. Its open-air bath faces the Seto Inland Sea, and the calcium-rich water is known as a beautifying spring.

Highlights

The spacious main bath is joined by an open-air tub facing the Seto Inland Sea, a sauna, and jet baths. Fed by a calcium and sodium chloride spring, it is a fine place to ease muscles tired from a day of island walking.

Enjoying the Seasons

Come in summer after a swim or a stroll along Angel Road, and in winter to warm up from the cold. It also makes a perfect stop during the autumn olive harvest or the Kankakei gorge foliage season.

Access and Basic Information

It is about five minutes by car from Tonosho Port. Attached to a shopping complex with a large car park, it is easy to reach by car, and its handy location lets you combine a soak with shopping.

Practical Travel Notes

The published day-trip bathing fee is around 1,000 yen for adults and about 350 yen for children. Hours run from around 11 in the morning to the later evening, with somewhat later closing on Fridays and Saturdays, and last entry about half an hour before closing. The water is a calcium and sodium chloride spring, and the varied tubs include an open-air bath and jet baths. Fees and hours can change, so check the official site before visiting to be sure.

A Quick Tip

Stopping here to close out your Shodoshima trip leaves you refreshed before boarding the boat. Do not forget to bring a towel, and plan your bathing time with room to spare around the ferry schedule.

Practical Information for Your Visit

• Spring quality: Calcium and sodium chloride strong salt hot spring
• Benefits: Neuralgia, muscle pain, joint pain, bruises, chronic digestive complaints and more
• Opening hours: Monday to Thursday, Sunday and public holidays 11:00-20:30 (last admission 20:00); Friday and Saturday 11:00-21:00 (last admission 20:30). When Monday is a public holiday, it also stays open until 21:00 on the Sunday
• Closing days: Every Tuesday (except in busy periods and on public holidays)
• Fees: 1,100 yen for adults, 350 yen for children (aged 5 to elementary school age), free of charge for infants (aged 4 and under). The member rate for adults is 880 yen, and the weekday parent-and-child bathing fee is 1,130 yen
• Multi-ticket books: A book of 10 adult tickets costs 8,000 yen, and a book of 10 senior tickets 7,000 yen
• Towels: A towel set to rent costs 330 yen
• Tattoos: People with tattoos or body art are not admitted. This includes fashion tattoos and small single-point designs
• Open-air bath: Yes, with a view over the Seto Inland Sea
• Sauna and cold plunge bath: Yes
• Parking: 750 spaces
• Access: About 5 minutes by car from Tonosho Port. Inside the Marunaka Shin-Tonosho store building
• Approximate time needed: Around 1 hour for a bath alone. Work backwards from the time of your ferry home so that you get in before last admission
• Address: Inside the Marunaka Shin-Tonosho store, 1360-10 Hannoike-ko, Tonosho Town, Shozu District, Kagawa Prefecture

Information Sources

The opening hours, closing days, types of bath, spring quality, policy on tattoos, parking and address were confirmed on the top page and the bathing facility page of the official Olive Onsen Manten no Yu website. The bathing fees, member rates, parent-and-child bathing fee, towel rental and multi-ticket book prices, together with the details of the revision of April 2, 2025, come from the Notice of Changes to Bathing Fees and Opening Hours published on the same site. The benefits and the access from Tonosho Port are based on the facility information on Udon Prefecture Tabi Net, the tourism information site of Kagawa Prefecture. Fees and opening hours are subject to change, so please check official information before you set out.