Take some time to relax amidst the excitement of travel in our open-air baths,
shared baths, and saunas, all with a unique sense of Japanese style.

Open-air bath
Enjoy the hot spring waters amidst a woodsy atmosphere and starry sky.
Enjoy a relaxing moment in the hot water amongst the luscious green scenery. Let your troubles soak away as you look up at the starry sky.- Floor
- B1F

Public Bath
Lose track of time with a refreshing soak amidst nature.
Wash away your stress and fatigue with a relaxing soak in the baths. As you bathe, look out over the luscious views of the surrounding nature and let the calm wash over you.- Floor
- B1F
- Bathroom equipment
- Body Soap, Shampoo, Conditioner, Child Seat, Assistance Seat
※Men's bath only: Face wash
※Women's bath only: Conditioner / Makeup Remover - Note
- ※The public bath uses preheated water.
※Only the open-air is a natural hot spring.

Sauna
Sweat the fatigue away and refresh your mind and body.
Refresh yourself by sweating the day's fatigue away in the sauna. Relax and let the stress of the day leave your body.- Floor
- B1F

Onsen Lounge
A calming space subtly illuminated by a warm, soft light.
Relax in the welcoming quiet of the Onsen Lounge. After the bath, you can enjoy a drink freely and take a rest on the sofa.- Floor
- B1F
Overview
- Hours
- 6am-10am (Last entry: 9:30am). 3pm-11pm (Last entry: 10:30pm)
- Usage Charges (per person)
- ・Complimentary access is available for guests staying at the hotel.
※Bath tax is included in the price of accommodation. - User Guide
- ・The age limit for mixed-gender bathing is 6 years old. Children above elementary school age should use the male bathrooms for boys and the female bathrooms for girls.
・Please note that, as a general rule, guests with tattoos are not allowed to use this facility.
However, entrance is permitted, provided the tattoo can be concealed by applying two 8cm x 10cm cover stickers,
which are sold at the hotel. - Floor
- B1F
- Note
- ※Business conditions may vary depending on the date. Please get in touch with the hotel staff for details.
※Service may not be available in case of inspection, closure, or private party.
※Entrance may be denied during exceptionally busy times or when the facility is reserved for private parties. We kindly ask for your understanding and cooperation. Please understand.
Facilities
- Amenities
- ■Indoor Public Bath
Body soap, shampoo, conditioner, baby soap, baby chairs, assistance chairs
■Changing rooms
Baby bed, water cooler, thermometer, cotton swabs, hair dryers, fans
EXPERIENCES SIGHTSEEING・ACTIVITIES
- Nature and Landscape
- Activity
- Experience and tour
- Gourmet
- Tourist Facilities

- #Nature and Landscape
- #Tourist Facilities
Enjoy the charming sights of the surrounding area through your hotel stay. Enjoy beautiful scenery, culture and cuisine and spend a special day just for you.

- #Nature and Landscape
- #Activity
Experience activities with Cape Obo Guide
Programs that walk around nature parks

- #Nature and Landscape
◆Okamoto Pier (Haraoka Pier) Haraoka Pier (Okamoto Pier), located between Haraoka Beach and Tadara Kitahama Beach, is one of the few wooden piers in Japan. The retro wooden pier and the light of darkness create a nostalgic atmosphere.
© Minamiboso-shi

- #Activity
Wear diving equipment and practice simple skills in shallow waters where your feet reach. The instructor will support you, so please don't worry for the first time.

- #Nature and Landscape
- #Activity
Experience activities with Cape Obo Guide
Programs that walk around nature parks

- #Activity
- #Tourist Facilities
■Recommended beach information for summer vacation■
![[Minami Boso City University Bosaki Nature House] May to July | Information on nature experience events](https://grand-mercure-minamiboso-resortandspa.jp/en/wp/wp-content/uploads/2024/07/55cf71daeceb261586c3610ffd7e9acd3c0e5be9.47.9.26.3-1000x563.jpg)
- #Nature and Landscape
- #Activity
- #Experience and tour
About a 5-minute walk from the hotel! Hosted by Minami Boso City University Bosaki Nature House
An adventure experience that can only be done in this land

- #Experience and tour
- #Tourist Facilities
◆Mother Farm boasts a vast site in Kanouzan overlooking the mountains of Mother Farm Boso Peninsula, Tokyo Bay, Mount Fuji, etc. At the entertainment farm of flowers and animals, you can meet a variety of animals.
Photo courtesy of: Mother Farm Inc.

- #Nature and Landscape
- #Tourist Facilities
Enjoy the charming sights of the surrounding area through your hotel stay. Enjoy beautiful scenery, culture and cuisine and spend a special day just for you.

- #Activity
- #Tourist Facilities
■Recommended beach information for summer vacation■

- #Experience and tour
- #Tourist Facilities
◆Mother Farm boasts a vast site in Kanouzan overlooking the mountains of Mother Farm Boso Peninsula, Tokyo Bay, Mount Fuji, etc. At the entertainment farm of flowers and animals, you can meet a variety of animals.
Photo courtesy of: Mother Farm Inc.