Shioashiya Onsen SPA Suishun

ShioashiyaOnsenSPASuishun

Hyogo Ashiya City

Shioashiya Onsen SPA Suishun is a day-use hot spring facility located in Ashiya City, Hyogo Prefecture. It features three types of saunas: löyly sauna, meditation sauna, and herbal salt sauna, which draw out sweat at high temperatures, followed by a refreshing cold plunge bath. The open-air rock bath offers the chloride bicarbonate spring 'Shiosai no Yu' in a free-flowing source, providing a gentle touch on the skin with high heat retention. The facility also includes five stone saunas, a recliner room with a view of the marina, a Japanese restaurant, a café, and a hot yoga studio, allowing you to relax all day by the seaside of Ashiya.

Hot Spring & Bath Information

Shiosai no Yu

TypeNatural Hot Spring

Flow-through

The natural hot spring 'Shiosai no Yu' springs from underground. The upper tier of the open-air rock bath offers free-flowing source water without heating, allowing you to enjoy the natural state of the water. The spring quality contains chlorides and bicarbonates, providing a salty membrane sensation while maintaining the softness of bicarbonates, offering high beauty benefits for the skin. With excellent heat retention, it warms the body from the core after bathing, making it difficult to catch a chill. It is expected to be effective for chronic muscle and joint pain, sensitivity to cold, fatigue recovery, cuts, and skin diseases. A therapeutic spring by the seaside of Ashiya, where you can quietly soak and reset your mind and body.

Sauna

Herbal Salt Sauna

60°C

Sauna TypeHerb Sauna

Stove TypeBuilt-in Stove

Capacity8people

Men's

A salt sauna filled with steam blended with ten types of herbal medicines, including cinnamon, chili peppers, and ginger. The aroma of the herbs stimulates the nasal passages and promotes sweating. By rubbing salt all over the body, it effectively removes old keratin and waste, leaving the skin smooth. Every hour on the hour, a 'White Attraction' event occurs, where a large amount of steam is released, enveloping the room in white. Suitable for those who prefer moderate temperatures, as it allows for a gradual experience.

Meditation Sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity4people

Men's

A quiet sauna space exclusively for the men's bath. Self-löyly is possible, allowing you to pour water on the sauna stones at your own pace and adjust the humidity and heat to your liking. With a meditation concept, the calm interior without TV or music allows for deep relaxation while facing oneself. In contrast to the lively löyly sauna, it is an ideal space for slowly sweating and aligning both mind and body.

Löyly Sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity20people

Men's

An automatic löyly is performed every hour on the hour, where water is poured over heated sauna stones, filling the room with high-temperature steam. Occasionally, staff perform a heat wave löyly service, where the circulating steam envelops the body with a large fan. The quality of the heat is sharp and deep, resulting in significant sweating even in a short time. This main sauna is enjoyable for a wide range of users, from advanced sauna enthusiasts accustomed to high temperatures to löyly beginners, and is ideal as an entry point to outdoor air bathing.

Cold Bath

Cold Bath

16°C

Water QualityTap Water

Capacity8people

Men's

A cold plunge bath to cool down the body after the sauna. Located adjacent to the sauna area, it is easily accessible from the löyly sauna and meditation sauna. The crisp cold temperature quickly cools down the body heated by the high-temperature sauna. The water quality is clean and soft, providing a pleasant sensation on the body. After the cold plunge bath, you can relax in the open-air area on a totonoi chair or deck chair for outdoor air bathing, experiencing a deep state of perfect relaxation while feeling the sea breeze.

Business Hours

Monday
09:00〜01:00
Tuesday
09:00〜01:00
Wednesday
09:00〜01:00
Thursday
09:00〜01:00
Friday
09:00〜01:00
Saturday
09:00〜01:00
Sunday
09:00〜01:00
Holiday
09:00〜01:00

Closed Days: None

Address

10-2 Kaiyo-cho, Ashiya City, Hyogo Prefecture

Onsen & Spa Facilities (Super Sento, Sauna, Spa)

Gender Access

Gender Separated

🚫
Tattoo Policy
No Tattoos
Premium Magazine

Japan's Must-Visit Finest Onsen & Sauna Facilities

Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.

Learn more