Yamaguchi Nagato City
The sauna debuted in 2025. A scenic inn overlooking Yutani Bay and its silky "beauty bath"
"Hotel Yokikan Yutani Bay Onsen" is a hot spring ryokan in Nagato City, Yamaguchi Prefecture. Set on a hill overlooking Yutani Bay, it offers a luxurious soak in a silky alkaline simple hot spring known as a "beauty bath" for its smooth feel. The large public baths, "Genshu-no-yu" and "Yang Guifei no Yu," alternate daily between men and women, and the property is equipped with the renovated "White Sauna" and "Black Sauna," both refreshed in 2025. In the White Sauna at Yang Guifei no Yu, you can sweat in style while gazing through the large windows at the beautiful ocean view. After the sauna, move on to the moderately chilled cold plunge bath, then enjoy outdoor air bathing in the infinity open-air bath with an unobstructed panoramic view of Yutani Bay.
Yutani Bay Onsen is a renowned hot spring that springs from a hill overlooking Yutani Bay. Its alkaline simple hot spring water has a silky, lotion-like texture and is known as a beauty bath because of its distinctive smooth feel. The infinity open-air bath, with a sweeping panoramic view of Yutani Bay right in front of you, is a highlight, and you can enjoy long, leisurely soaks while feeling the sea breeze and forgetting the passage of time.
The White Sauna is located in Yang Guifei no Yu, which reopened in August 2025. Its bright, refined interior is based on white tones and features large windows, allowing you to slowly work up a sweat while looking out over the beautiful blue sea of Yutani Bay below. It delivers an exquisite relaxation experience that feels almost like floating on the ocean.
[Day-use bathing] 11:00–21:00 (last admission 20:00) *Closed between 15:30 and 18:00 on Saturdays, Sundays, and public holidays
Yamaguchi Nagato City
The sauna debuted in 2025. A scenic inn overlooking Yutani Bay and its silky "beauty bath"
"Hotel Yokikan Yutani Bay Onsen" is a hot spring ryokan in Nagato City, Yamaguchi Prefecture. Set on a hill overlooking Yutani Bay, it offers a luxurious soak in a silky alkaline simple hot spring known as a "beauty bath" for its smooth feel. The large public baths, "Genshu-no-yu" and "Yang Guifei no Yu," alternate daily between men and women, and the property is equipped with the renovated "White Sauna" and "Black Sauna," both refreshed in 2025. In the White Sauna at Yang Guifei no Yu, you can sweat in style while gazing through the large windows at the beautiful ocean view. After the sauna, move on to the moderately chilled cold plunge bath, then enjoy outdoor air bathing in the infinity open-air bath with an unobstructed panoramic view of Yutani Bay.
Yutani Bay Onsen is a renowned hot spring that springs from a hill overlooking Yutani Bay. Its alkaline simple hot spring water has a silky, lotion-like texture and is known as a beauty bath because of its distinctive smooth feel. The infinity open-air bath, with a sweeping panoramic view of Yutani Bay right in front of you, is a highlight, and you can enjoy long, leisurely soaks while feeling the sea breeze and forgetting the passage of time.
The White Sauna is located in Yang Guifei no Yu, which reopened in August 2025. Its bright, refined interior is based on white tones and features large windows, allowing you to slowly work up a sweat while looking out over the beautiful blue sea of Yutani Bay below. It delivers an exquisite relaxation experience that feels almost like floating on the ocean.
[Day-use bathing] 11:00–21:00 (last admission 20:00) *Closed between 15:30 and 18:00 on Saturdays, Sundays, and public holidays
The Black Sauna is located in Genshu-no-yu, which was renovated in September 2025. Its modern, calm design, based on chic black tones, is a defining feature. Away from surrounding noise and in subdued lighting, you can sweat comfortably while turning inward, as if meditating deeply. Since the men's and women's bath areas alternate daily, overnight guests can experience both.
The cold plunge bath is located right near the sauna room in the large public bath. It is kept at an ideal temperature that is neither too cold nor too lukewarm, gently enveloping your heated body after the sauna and helping you cool down comfortably. After the cold plunge bath, you can smoothly transition to outdoor air bathing in the open-air area where the wind from unobstructed Yutani Bay passes through.
The Black Sauna is located in Genshu-no-yu, which was renovated in September 2025. Its modern, calm design, based on chic black tones, is a defining feature. Away from surrounding noise and in subdued lighting, you can sweat comfortably while turning inward, as if meditating deeply. Since the men's and women's bath areas alternate daily, overnight guests can experience both.
The cold plunge bath is located right near the sauna room in the large public bath. It is kept at an ideal temperature that is neither too cold nor too lukewarm, gently enveloping your heated body after the sauna and helping you cool down comfortably. After the cold plunge bath, you can smoothly transition to outdoor air bathing in the open-air area where the wind from unobstructed Yutani Bay passes through.
