
Have a relaxing time in hot springs and public baths
In April 2024, hotels in "Grand Mercure" and "Mercure" by Ako, one of the world's largest hospitality groups based in Paris, France, opened in 22 locations nationwide from Hokkaido to Okinawa. Depending on the hotel, there is 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 the hot spring. 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 details, please check the website of each hotel.






















Hot spring open-air bath
Fresh green, autumn leaves, snowy scenery in winter, etc.
A blissful moment where you can feel the breath of nature 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 the five senses. A hot spring open-air bath full of openness, warms your mind and body from the core, and has a blissful relaxing time.










Grand Mercure Ise-shima Resort & Spa
Shinmisato Onsen
Heal the tiredness of traveling with a simple alkaline hot spring called "longevity hot spring". Please spend a blissful time in a quaint and peaceful space with rocks.
- Fountain Quality / Adaptation
- Alkaline Simple Hot Spring / Rheumatoid arthritis, osteoarthritis, back pain, neuralgia, fifty shoulders, bruises, sprains, etc., muscle stiffness in motor paralysis, reduced gastrointestinal function, mild hypertension, glucose resistance, light hypercholesterolemia, light asthma or pulmonary ema, hemorrhoid pain, autonomic nervous instability, stress, potato symptoms due to stress, recovery from fatigue, health promotion

Mercure Kochi Tosa Resort & Spa
Yosakoi Onsen
The open-air bath, which is shaped with the motifs of Katsura-hama Beach and Cape Muroto-misaki in Kochi Prefecture, has a statue of Ryoma Sakamoto and Shintaro Nakaoka, which are closely related to Tosa. Please spend a relaxing time both physically and mentally at Yosakoi Onsen, the source of your home.
- Fountain Quality / Adaptation
- Sodium-chloride hot spring/rheumatoid arthritis, osteoarthritis, back pain, neuralgia, fifty shoulders, bruises, sprains, etc., stiffness in the muscles in motor paralysis, coldness, peripheral circulatory disorders, decreased gastrointestinal function, mild hypertension, hyperglyceremia, light hypercholesterolemia, light asthma or pulmonaryoma, hemorrhoid pain, autonomic instability, stress-related symptoms, post-sickness recovery, fatigue, fatigue, peripheral circulatory disorders, decreased gastrointestinal dysfunction (hemorrhoidal disorders, etc.), hemorrhoidal disorders, etc.), hemorrhoidal disorders, etc.

Grand Mercure Beppu Bay Resort & Spa
Hiji Onsen
The quality of the spring source "Hiji Onsen" that springs from the premises is a sodium chloride spring that heals the fatigue of the day. While watching the morning sun rising from Beppu Bay in the morning and the quiet water surface of Beppu Bay in the evening, heal the tiredness of traveling with an emotional hot spring open-air bath.
- Fountain Quality / Adaptation
- Sodium-Chloride cold mineral spring/rheumatoid arthritis, osteoarthritis, back pain, neuralgia, fifty shoulders, bruises, sprains, etc., muscle stiffness in motor paralysis, reduced gastrointestinal function, mild hypertension, glucose resistance, light hypercholesterolemia, light asthma or emphysema, hemorrhoid pain, autonomic instability, stress symptoms, recovery, health promotion

Mercure Wakayama Kushimoto Resort & Spa
Kushimotocho Onsen
You can overlook the scenic beauty of Hashikui-iwa Rock and Kii Oshima from the open-air bath, and the Pacific Ocean that spreads as much as possible. Soak in an open-air bath, look at the starry sky at night, and enjoy the morning sun rising from the horizon in the morning.
- Fountain Quality / Adaptation
- Calcium / Sodium - Chloride Hot Spring / Rheumatoid arthritis, osteoarthritis, back pain, neuralgia, fifty shoulders, bruises, sprains, etc., muscle stiffness in motor paralysis, reduced gastrointestinal function, mild hypertension, glucose resistance, light hypercholesterolemia, light asthma or pulmonary ema, hemorrhoid pain, autonomic instability, stress symptoms, 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 Onsen
- 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 Miyazu no Yurayura Onsen
- Grand Mercure Wakayama Minabe Resort & Spa Kishu Minabe Chiri-hama Beach Onsen
- 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 a hot spring bath full of openness,
Have an elegant moment to heal the fatigue of your trip.
You can enjoy different tastes depending on the quality of the hot spring, the indication, and the atmosphere of the 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 by soaking in sodium bicarbonate spring, also known as beauty hot water. You can relax to your heart's content. Please experience the time of healing the tiredness of the day in a spacious indoor bath full of openness.
- Fountain Quality / Adaptation
- Sodium bicarbonate spring/rheumatoid arthritis, osteoarthritis, back pain, neuralgia, fifty shoulders, bruises, sprains, etc., muscle stiffness in motor paralysis, reduced gastrointestinal function, mild hypertension, glucose resistance, light hypercholesterolemia, light asthma or pulmonary ema, hemorrhoid pain, autonomic instability, mackerel symptoms due to stress, post-sick 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 your body with a sodium chloride hot spring and frees you from everyday life. Please relax in the hot spring, heal the fatigue of your trip, and spend a relaxing time both physically and mentally.
- Fountain Quality / Adaptation
- Sodium - chloride hot spring / neuralgia, muscle pain, arthralgia, fifty shoulders, motor paralysis, joint stiffness, bruises, splashes, chronic digestive diseases, hemorrhoids, coldness, post-sickness recovery, fatigue recovery, health promotion, burns, chronic skin diseases, sick children, chronic gynecological diseases

Grand Mercure Awaji Island Resort & Spa
Nandan Onsen
Nandan Onsen, which is the source of the spring, is characterized by the warmth after bathing for a relatively long time. After the bath, enjoy the blissful time of healing both physically and mentally while being wrapped in a warm afterness.
- Fountain Quality / Adaptation
- Calcium and Sodium - chloride spring

Mercure Fukuoka Munakata Resort & Spa
Genkai Satsuki Onsen
Genkai Satsuki Onsen, which springs out of the basement on the premises, is a hotel's specialty hot spring that boasts abundant spring water every minute. Please enjoy the elegant hot spring bath slowly.
- Fountain Quality / Adaptation
- Alkaline simple hot spring / neuralgia, muscle pain, joint pain, fifty shoulders, motor paralysis, joint stiffness, slash, chronic digestive diseases, hemorrhoids, coldness, post-sickness recovery, 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 the 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 moment of healing while watching the blue sea of Okinawa. Because it is located on the west coast, we recommend sunset time that blends into the sea.

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

Indoor bath
Mercure Tottori Daisen Resort & Spa
A space where you can feel natural light during the day and warm light at night. It relaxes your body. Please relax in the large public bath full of spacious openness.
Observation Bath / Indoor Bath List
- Grand Mercure Nasu Highlands Resort & Spa Click here for details
- Grand Mercure Minamiboso Resort & Spa Click here for details
- Mercure Nagano Matsushiro Resort & Spa Click here for details
- Mercure Toyama Tonami Resort & Spa Click here for details
- Grand Mercure Ise-shima Resort & Spa Click here for details
- Grand Mercure Lake Biwa Resort & Spa Click here for details
- Mercure Kyoto Miyazu Resort & Spa Click here for details
- Grand Mercure Wakayama Minabe Resort & Spa Click here for details
- Mercure Tottori Daisen Resort & Spa Click here for details
- Mercure Kochi Tosa Resort & Spa Click here for details
- Mercure Saga Karatsu Resort Click here for details
- Grand Mercure Beppu Bay Resort & Spa Click here for details
- Grand Mercure Okinawa Cape Zanpa Resort Click here for details

Sauna
Special temperature and water bath. Have a pleasant time and bliss 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 Hotel
- 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 and tea.
Refreshing your throat and having a blissful moment.
A hot spring lounge where you can spend a relaxing and quiet time. After bath, take a break on the sofa with a drink. 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 time to moisturize 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 out 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 tiredness of the day at "Miyazu no Yura Yura Onsen" drawn from the beach of Tango-Yura, please relax while enjoying a drink at the hot spring lounge.
Other target HOTELS
■ Hot spring lounge
- Mercure Urabandai Resort & Spa Click here for details
- Grand Mercure Nasu Highlands Resort & Spa Click here for details
- Grand Mercure Minamiboso Resort & Spa Click here for details
- Grand Mercure Yatsugatake Resort & Spa Click here for details
- Mercure Nagano Matsushiro Resort & Spa Click here for details
- Grand Mercure Lake Hamana Resort & Spa Click here for details
- Grand Mercure Ise-shima Resort & Spa Click here for details
- Grand Mercure Lake Biwa Resort & Spa Click here for details
- Grand Mercure Nara Kashihara Click here for details
- Mercure Kyoto Miyazu Resort & Spa Click here for details
- Grand Mercure Wakayama Minabe Resort & Spa Click here for details
- Mercure Wakayama Kushimoto Resort & Spa Click here for details
- Grand Mercure Awaji Island Resort & Spa Click here for details
- Mercure Tottori Daisen Resort & Spa Click here for details
- Mercure Kochi Tosa Resort & Spa Click here for details
- Mercure Fukuoka Munakata Resort & Spa Click here for details
- Grand Mercure Beppu Bay Resort & Spa Click here for details
■ Relaxation Lounge
Hot spring open-air bath
Hot spring bath
Observation bath and inner bath
Hot Spring Relaxation Lounge