
Have a relaxing time in hot springs and public baths
In April 2024, hotels in "Grand Mercure" and "Mercure" of Ako, the world's largest hospitality group based in Paris, France, opened in 22 locations nationwide from Hokkaido to Okinawa. The hotel is equipped with an open-air bath full of greenery, as well as a spacious open-air bath and a sauna. Amazake is also available in the hot spring lounge after bath. Please immerse yourself in hot springs of various spring quality in each region and spend a relaxing time.
※Hot spring facilities vary from hotel to hotel. For more information, please check the website of each hotel.






















Hot spring open-air bath
Fresh green, autumn leaves, snow scene in winter, etc.
A blissful moment where you can feel the breath of nature in the four seasons on your skin.
It is the real pleasure of an open-air bath to relax in the hot spring while enjoying the nature that changes its expression depending on the season with your five senses. In a hot spring open-air bath full of openness, both mind and body warm from the core, and have a blissful relaxing time.










Grand Mercure Ise-shima Resort & Spa
Shinmisato Onsen
Heals the fatigue of travel with a simple body-friendly alkaline hot spring called "Longevity Hot Spring". Please spend a blissful time in a quaint relaxing space with rocks.
- Spring Quality / Indication
- Alkaline simple hot spring / Rheumatoid arthritis, osteoarthritis, back pain, neuralgia, frozen shoulder, bruises, bruises, etc., muscle stiffness in motor paralysis, decreased gastrointestinal function, mild hypertension, glucose tolerance, light hypercholesterolemia, light asthma or emphysema, hemorrhoid pain, autonomic instability, potato symptoms due to stress, post-sickness recovery, fatigue recovery, health promotion

Mercure Kochi Tosa Resort & Spa
Yosakoi Onsen
Ryoma Sakamoto and Shintaro Nakaoka statues, which are closely related to Tosa, are built in the open-air bath shaped with the motifs of Katsura-hama Beach and Cape Muroto-misaki, Kochi Prefecture. Please spend a relaxing time both physically and mentally at Yosakoi Onsen, the source of your home.
- Spring Quality / Indication
- Sodium-chloride hot spring/rheumatoid arthritis, osteoarthritis, back pain, neuralgia, frozen shoulder, bruises, sprain, etc., stiffness in the muscle in motor paralysis, coldness, peripheral circulatory disorder, decreased gastrointestinal function, light hypertension, light hypercholesterolemia, light asthma or pulmonary emphysema, hemorrhoid pain, autonomic instability, stress symptoms, post-sickness, fatigue recovery, health promotion, peripheral circulatory disorders (such as a depressed gas intestinal disorders), light asthroid, hypertension, hypertensity, hypertensity, hypertension, hypertension, hypertension, hypertension, hypertension, hypertension, hypertension,

Grand Mercure Beppu Bay Resort & Spa
Hiji Onsen
The spring quality of Hiji Onsen, a source that springs from the premises, is a sodium chloride spring that heals the fatigue of the day. Enjoy the morning sun rising from Beppu Bay in the morning, and the quiet water surface of Beppu Bay at night, soothe the fatigue of your trip with an emotional hot spring open-air bath.
- Spring Quality / Indication
- Sodium-chloride cold spring/rheumatoid arthritis, osteoarthritis, back pain, neuralgia, fifty shoulders, bruises, sprains, etc., muscle stiffness in motor paralysis, decreased gastrointestinal function, light hypertension, sugar tolerance, light hypercholesterolemia, light asthma or emphysema, hemorrhoid pain, autonomic instability, stress symptoms, post-sickness recovery, fatigue recovery, health promotion

Mercure Wakayama Kushimoto Resort & Spa
Kushimotocho Onsen
You can overlook the scenic spot Hashikui-iwa Rock and Kii Oshima seen from the open-air bath, and the endless Pacific Ocean. Soak in the open-air bath, watch the starry sky at night, and enjoy the sunrise rising from the horizon in the morning.
- Spring Quality / Indication
- Calcium / Sodium - Chronic period such as hot spring / Rheumatoid arthritis, osteoarthritis, back pain, neuralgia, frozen shoulder, bruises, sprains, etc., muscle stiffness in motor paralysis, decreased gastrointestinal function, light hypertension, glucose tolerance, light hypercholesterolemia, light asthma or emphysema, hemorrhoid pain, autonomic instability, stress symptoms, post-sickness recovery, fatigue recovery, health promotion
List of hot spring open-air baths
- Mercure Miyagi Zao Resort & Spa Toogattaonsen
- Mercure Urabandai Resort & Spa Goshiki Onsen
- Grand Mercure Nasu Highlands Resort & Spa Nasu Onsen
- Grand Mercure Minamiboso Resort & Spa Minami Boso Hot Spring
- Grand Mercure Yatsugatake Resort & Spa Kai-Oizumi Onsen
- Mercure Nagano Matsushiro Resort & Spa Matsushiroonsen
- Grand Mercure Lake Hamana Resort & Spa Yuto Onsen
- Mercure Toyama Tonami Resort & Spa Ecchu Tonamino Onsen
- Grand Mercure Ise-shima Resort & Spa Shinmisato Onsen
- Grand Mercure Lake Biwa Resort & Spa Nagahama Taiko Onsen
- Mercure Kyoto Miyazu Resort & Spa Yurayura Onsen in Miyazu
- Grand Mercure Wakayama Minabe Resort & Spa Kishu Minabe Chiri-hama Beach Hot Spring
- Mercure Wakayama Kushimoto Resort & Spa Kushimotocho Onsen
- Grand Mercure Awaji Island Resort & Spa Nandan Onsen
- Mercure Tottori Daisen Resort & Spa Daisen Onsen
- Mercure Kochi Tosa Resort & Spa Yosakoi Onsen
- Mercure Fukuoka Munakata Resort & Spa Genkai Satsuki Onsen
- Grand Mercure Beppu Bay Resort & Spa Hiji Onsen

Hot spring bath
In the hot spring bath with plenty of open feeling,
Elegant moment to heal tiredness of travel.
You can enjoy different tastes depending on the quality of the hot springs, indications, and the atmosphere of the large public bath. Every hot spring can heal the fatigue of the trip and heal the fatigue of the trip.










Grand Mercure Yatsugatake Resort & Spa
Kai-Oizumi Onsen
Relax and relax in the sodium bicarbonate spring, also known as beauty hot water. You can relax to your heart's content. Please experience the time when the fatigue of the day is healed in a spacious indoor bath full of openness.
- Spring Quality / Indication
- Sodium bicarbonate spring / Rheumatoid arthritis, osteoarthritis, back pain, neuralgia, frozen shoulder, bruises, bruises, etc., muscle stiffness in motor paralysis, decreased gastrointestinal function, mild hypertension, glucose tolerance, light hypercholesterolemia, light asthma or emphysema, hemorrhoid pain, autonomic instability, mackerel symptoms due to stress, post-sickness recovery, fatigue recovery, health promotion

Grand Mercure Nara Kashihara
Kashihara-no-Yu
Kashihara no Yu, which has a source on the premises, is a relaxing space that warms the body firmly with a sodium chloride hot spring and releases it from everyday life. Please relax in the hot spring, heal the fatigue of your trip, and spend a relaxing time both physically and mentally.
- Spring Quality / Indication
- Sodium-chloride hot spring / neuralgia, muscle pain, arthralgia, frozen shoulder, motor paralysis, joint stiffness, bruises, sprains, chronic digestive diseases, hemorrhoids, coldness, post-sick recovery, fatigue recovery, health promotion, burns, chronic skin diseases, sick children, chronic gynecological diseases

Grand Mercure Awaji Island Resort & Spa
Nandan Onsen
Nandan Onsen, the spring source, is characterized by a relatively long-lasting warmth after bathing. After the bath, please enjoy a blissful time where you can heal both physically and mentally while wrapped in a warm lingering lingering.
- Spring Quality / Indication
- Calcium and Sodium - chloride spring

Mercure Fukuoka Munakata Resort & Spa
Genkai Satsuki Onsen
Genkai Satsuki Onsen, which springs from the basement of the premises, is a hotel's specialty hot spring that boasts abundant spring water every minute. Please enjoy a relaxing and elegant hot spring water.
- Spring Quality / Indication
- Alkaline simple hot spring / neuralgia, muscle pain, joint pain, frozen shoulder, motor paralysis, stiff joints, bruises, sprains, chronic gastrointestinal diseases, hemorrhoids, cold, post-sick recovery period, fatigue recovery, health promotion
List of hot spring baths
- Mercure Miyagi Zao Resort & Spa Toogattaonsen
- Mercure Urabandai Resort & Spa Goshiki Onsen
- Grand Mercure Yatsugatake Resort & Spa Kai-Oizumi Onsen
- Grand Mercure Lake Hamana Resort & Spa Yuto Onsen
- Grand Mercure Nara Kashihara Kashihara-no-Yu
- Mercure Wakayama Kushimoto Resort & Spa Kushimotocho Onsen
- Grand Mercure Awaji Island Resort & Spa Nandan Onsen
- Mercure Fukuoka Munakata Resort & Spa Genkai Satsuki Onsen

Observation bath, inner bath, sauna
You can relax and heal the fatigue of your trip. Please relax in a spacious public bath with a sense of openness.










Observation bath
Grand Mercure Okinawa Cape Zanpa Resort
An observation bath with panoramic views of the East China Sea. You can spend a relaxing time while looking at the blue sea of Okinawa. Because it is located on the west coast, it is recommended to have a sunset time that blends into the sea.

Inner bath
Mercure Toyama Tonami Resort & Spa
If you leave your body to hot water in a spacious public bath with a sense of openness, you will be able to relieve fatigue of the day. Please enjoy the healing time while feeling the great nature of Tonami Shogawa Gorge that spreads out outside the window.

Inner bath
Mercure Tottori Daisen Resort & Spa
A space where you can feel natural light during the day and warm light at night. You will relax and heal your body. Please relax at a large public bath full of spacious openness.
List of observation baths and inner baths
- Grand Mercure Nasu Highlands Resort & Spa Click here for more information
- Grand Mercure Minamiboso Resort & Spa Click here for more information
- Mercure Nagano Matsushiro Resort & Spa Click here for more information
- Mercure Toyama Tonami Resort & Spa Click here for more information
- Grand Mercure Ise-shima Resort & Spa Click here for more information
- Grand Mercure Lake Biwa Resort & Spa Click here for more information
- Mercure Kyoto Miyazu Resort & Spa Click here for more information
- Grand Mercure Wakayama Minabe Resort & Spa Click here for more information
- Mercure Tottori Daisen Resort & Spa Click here for more information
- Mercure Kochi Tosa Resort & Spa Click here for more information
- Mercure Saga Karatsu Resort Click here for more information
- Grand Mercure Beppu Bay Resort & Spa Click here for more information
- Grand Mercure Okinawa Cape Zanpa Resort Click here for more information

Sauna
Special temperature and water bath. Have a pleasant and blissful time in a calm sauna space.
- Grand Mercure 11 Hotel
- Grand Mercure Nasu Highlands Resort & Spa| Grand Mercure Minamiboso Resort & Spa| Grand Mercure Yatsugatake Resort & Spa| Grand Mercure Lake Hamana Resort & Spa| Grand Mercure Ise-shima Resort & Spa| Grand Mercure Lake Biwa Resort & Spa| Grand Mercure Nara Kashihara| Grand Mercure Wakayama Minabe Resort & Spa| Grand Mercure Awaji Island Resort & Spa| Grand Mercure Beppu Bay Resort & Spa| Grand Mercure Okinawa Cape Zanpa Resort
- Mercure 10 Hotels
- Mercure Miyagi Zao Resort & Spa| Mercure Urabandai Resort & Spa| Mercure Nagano Matsushiro Resort & Spa| Mercure Toyama Tonami Resort & Spa| Mercure Kyoto Miyazu Resort & Spa| Mercure Wakayama Kushimoto Resort & Spa| Mercure Tottori Daisen Resort & Spa| Mercure Kochi Tosa Resort & Spa| Mercure Fukuoka Munakata Resort & Spa| Mercure Saga Karatsu Resort

Hot spring lounge
Relaxation lounge
After bathing, with carefully selected amazake or tea
Refresh your throat and have a blissful moment.
A hot spring lounge where you can spend a relaxing and quiet time. Take a break on the sofa with a drink after bath. Please enjoy amazake at night.
※Drink offerings may vary depending on the time of day.









Hot spring lounge
Mercure Nagano Matsushiro Resort & Spa
After enjoying the hot spring effect of Yuhime no Yu Matsushiroonsen, you can refresh your mind and body with carefully selected amazake and local tea. We also have local tea white peach tea, so you can enjoy a refreshing and moisturizing your throat.

Hot spring lounge
Grand Mercure Lake Biwa Resort & Spa
After being healed at Nagahama Taiko Onsen, which is related to Taiko, which springs up at the ruins of Nagahama Castle, please refresh your throat with a refreshing vinegar drink and enjoy a relaxing time. At night, you can also enjoy Amazake, which has been popular in Japan for a long time.

Hot spring lounge
Mercure Kyoto Miyazu Resort & Spa
After healing the fatigue of the day at Miyazu no Yurayura Onsen, which was drawn from the beach of Tango-Yura, relax while enjoying a drink at the hot spring lounge.
Other target HOTELS
■ Hot spring lounge
- Mercure Urabandai Resort & Spa Click here for more information
- Grand Mercure Nasu Highlands Resort & Spa Click here for more information
- Grand Mercure Minamiboso Resort & Spa Click here for more information
- Grand Mercure Yatsugatake Resort & Spa Click here for more information
- Mercure Nagano Matsushiro Resort & Spa Click here for more information
- Grand Mercure Lake Hamana Resort & Spa Click here for more information
- Grand Mercure Ise-shima Resort & Spa Click here for more information
- Grand Mercure Lake Biwa Resort & Spa Click here for more information
- Grand Mercure Nara Kashihara Click here for more information
- Mercure Kyoto Miyazu Resort & Spa Click here for more information
- Grand Mercure Wakayama Minabe Resort & Spa Click here for more information
- Mercure Wakayama Kushimoto Resort & Spa Click here for more information
- Grand Mercure Awaji Island Resort & Spa Click here for more information
- Mercure Tottori Daisen Resort & Spa Click here for more information
- Mercure Kochi Tosa Resort & Spa Click here for more information
- Mercure Fukuoka Munakata Resort & Spa Click here for more information
- Grand Mercure Beppu Bay Resort & Spa Click here for more information
■ Relaxation lounge
Hot spring open-air bath
Hot spring bath
Observation bath and inner bath
Hot spring and relaxation lounge