AMANERESORTSEIKAI

All rooms feature open-air baths. A resort onsen with spectacular views of Beppu Bay and an infinity onsen at 0 m above sea level.

Oita Beppu City

AMANE RESORT SEIKAI (Shiosai no Yado Seikai) is a seaside resort hotel located in Shonin-ga-hama Onsen in Beppu City, Oita Prefecture. All guest rooms have ocean views and come with open-air baths fed directly by the source. The first-floor large bath, Shiosai no Yu, features an infinity open-air bath at 0 m above sea level, offering spectacular bathing that feels as if you are floating on the sea. It also includes an ocean-view dry sauna overlooking Beppu Bay and a mineral-rich sea-water bath. With three dining venues and a spa, you can fully enjoy a luxurious relaxation experience.

Hot Spring & Bath Information

Shonin-ga-hama Onsen

TypeNatural Hot Spring

Flow-through

Beppu Onsen, with one of the world's highest spring yields, is used throughout the facility as free-flowing natural hot spring water, from the guest room open-air baths to the large public bath. It is a sodium chloride spring with excellent heat-retaining effects, leaving you warm deep down after bathing. In particular, Shiosai no Yu on the first floor features an infinity open-air bath at 0 m above sea level, and when you sink into the tub up to your shoulders, you can enjoy an overwhelming sense of openness, as if you were floating on the sea.

Sauna

Ocean-view dry sauna

90°C

Sauna TypeDry Sauna

Stove TypeConvection Stove (Sauna Stone)

Capacity15people

Men'sWomen's

An ocean-view dry sauna located in the first-floor large bath, Shiosai no Yu, with spectacular views of Beppu Bay. Relax and sweat at your own pace while gazing out through the large windows at the sea. Surrounded by the openness and serenity unique to a seaside setting, it offers a superb sauna experience that deeply refreshes both body and mind.

Cold Bath

Sea-water bath

15°C

Water QualityNatural Water (Groundwater, Spring, etc.)

Capacity4people

Men'sWomen's

A mineral-rich sea-water bath made by filtering pumped-up seawater and blending it at a ratio of about 25%. The sharply cold water quickly tightens and refreshes your body after the sauna. Rest in the outdoor bathing area while feeling the pleasant sea breeze, and enjoy a blissful totonou time.

Business Hours

Monday
15:00〜00:00
05:00〜10:00
Tuesday
15:00〜00:00
05:00〜10:00
Wednesday
15:00〜00:00
05:00〜10:00
Thursday
15:00〜00:00
05:00〜10:00
Friday
15:00〜00:00
05:00〜10:00
Saturday
15:00〜00:00
05:00〜10:00
Sunday
15:00〜00:00
05:00〜10:00
Holiday
15:00〜00:00
05:00〜10:00
💡 [Day-use bathing] 12:30-22:00 (last admission 21:30)

Closed Days: None

Address

6-24 Shonin-ga-hama-cho, Beppu City, Oita Prefecture 874-0023, Shiosai no Yado Seikai

View on Google Maps

Website

http://www.seikai.co.jp/
Hotel & Ryokan

Gender Access

Gender Separated

❓
Tattoo Policy
Unknown (Please Check)
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