Ibaraki · Oarai
Oarai Shiosai-no-yu
大洗 潮騒の湯
Two hours by train from Tokyo, a day spa right in front of Oarai Sun Beach. The open-air baths — 'Kuroshio' for men, 'Oyashio' for women — look straight out over the Pacific, and the strong salt water from 1,500 m down keeps you warm long after. There's also a carbonated bath. The panoramic restaurant serves seafood from Oarai port. ¥1,000 on weekdays, 10:00–21:30, open daily. Five minutes by taxi from Oarai Station.
- Price (adult)
- ¥1,000
- Hours
- 10:00–21:30(last entry 20:30)
- Closed
- Open daily
- Access
- 5 min by taxi (30 min walk) from Oarai Station (Kashima Rinkai Railway)
- Water type
- Simple spring
- Tattoos
- Ask ahead
- Phone
- 029-267-4031
- Official site
- www.shiosainoyu.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Oarai. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- Pacific views from the rotenburo
- Strong salt spring from 1,500 m
- Seafood restaurant with a view
Before you go
- No official tattoo policy is published — ask at reception.
- Last entry is 30–60 minutes before closing.
Features
Mood & scenery
Price
Who with
Amenities
✔ Verified operating: 2026-09 るるぶ&more 2026（平日1,000円/土日祝1,200円・10–21:30）
Prices and hours change. Check official sources before visiting.
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Tsukubasan Onsen Tsukuba no Yu
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Izura Kankō Hotel Taikansō (Taikan-no-yu)
A long-established hotel on the cliffs of the Izura coast, the scenic spot beloved of art historian Okakura Tenshin. The main building and the Taikansō annex flank the Rokkakudō pavilion; day bathers use Taikan-no-yu in the annex. The open-air bath, refurbished in 2012, sits right above the Pacific — free-flowing spring water, the horizon and the sound of breaking waves. The indoor hall also looks out to sea through big windows. Day use in two sessions, 11:00–15:00 (last entry 14:30) and 18:00–21:00 (last entry 20:30), ¥1,100. Closure days are irregular, so check the official notice page. Five minutes by car from JR Ōtsukō Station; combine with the Tenshin Memorial Museum and Rokkakudō.