Grand Mercure Minamiboso Resort & Spa
Reference price as of October 13, 2026 (stay 2026-11-07). US$ is an approximate conversion from yen. Check the booking site for actual rates.
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forumWhat families say
As a Mikihouse-certified Welcome Baby hotel, this Minamiboso resort is thoughtfully set up for families, with 5 play areas, children's equipment in the communal bath, a summer Garden Pool (shallow section 40 cm) and an all-inclusive plan covering baby food and the buffet. Some guests note waits for the buffet at busy times, but the renovated play areas and lounge draw praise.
Kids Facilities
Play areas and table tennis corner
Play areas and table tennis corner
The first floor has a play area open from 7 a.m. to 11 p.m., with a slide with the warmth of natural wood, educational toys and a rest space where adults can sit. It can be used before check-in and after checkout as well. From 1 to 6 p.m. and from 7 to 11 p.m., the first-floor waiting room, with a tatami play space and a soft-drink corner, is also available. The second floor has 3 play areas open from 7 a.m. to 11 p.m.: an active area for ring toss and ball play, a free table tennis area, and an area for go, shogi and nap art. Using them requires reviewing and agreeing to the terms of use, and an adult must accompany the children.
- •Using the play areas requires reviewing and agreeing to the terms of use, and an adult must accompany the children.
Children's facilities in the communal bath
Children's facilities in the communal bath
The communal bath keeps a baby bath, a baby chair, children's body soap and shampoo, a shampoo hat, a diaper-changing table, a baby bed and a diaper pail on hand, and can be used from age 0. The changing room of the women's communal bath also has a baby playpen, a diaper-changing table and a baby bed. Only the open-air bath is onsen; the indoor bath uses heated water.
- •From elementary school age, boys use the men's bath and girls use the women's bath.
- •Using the bath of the opposite gender is for children up to age 6.
Baby items available to borrow
Baby items available to borrow
Items available to borrow include a diaper bin, baby wipes, a formula-preparation pot, a baby-bottle washing set, a Bumbo seat, a children's toilet-training seat, a step stool, baby soap and in-house wear (size S, 110 cm; size M, 130 cm). Strollers, bed guards and humidifiers are also available to borrow.
- •The number of items available to borrow is limited.
- •The number of strollers available to borrow is limited.
Nursing rooms
Nursing rooms
There are 2 nursing rooms in the hotel, available all day. The first-floor nursing room has a water server, a microwave and a diaper-changing table, and the second-floor nursing room has a water server and a diaper-changing table.
Kids' space at the Garden Pool
Kids' space at the Garden Pool
- calendar_monthSeason:2026/7/18~2026/9/23
- paymentsPrice:Free for guests
The summer-only outdoor Garden Pool has a kids' space made shallower for children. In 2026 it operates from July 18 to September 23, from 9 a.m. to 5 p.m., and is included in the room rate. Children who are not yet out of diapers use it wearing a swim diaper.
- •Children who are not yet out of diapers must wear a swim diaper.
Family rooms
Family rooms
Family-friendly rooms include the Family Superior Room, arranged as a shoes-off room; the Family Modern Japanese-style tatami room, where babies can crawl on the tatami; and the Classic Family Twin Forest View, a Welcome Baby certified room.
Categories
Overview
Grand Mercure Minamiboso Resort & Spa is an all-inclusive resort on Taibusa Cape within Minamiboso Quasi-National Park, certified as a Welcome Baby hotel. Every room is a roomy 36 sq m or more, and some room types are arranged with families in mind. The communal bath has a baby bath and a diaper-changing table and can be used from age 0. With a play area on the first floor, two nursing rooms and a generous range of baby items available to borrow, families with young children can settle in with peace of mind.
Rooms
Every guest room is a roomy 36 sq m or more. Some room types are arranged with families in mind. The Family Superior Room, renovated in April 2024 from a Superior Twin as a shoes-off room, can take up to 2 extra beds and has an in-room projector. The Family Modern Japanese-style tatami room, where babies can crawl on the tatami, sleeps up to 5 and suits three-generation trips as well. The Classic Family Twin Forest View, a Welcome Baby certified room, has Hollywood-style twin beds and comes with children's items in the room, including a microwave, a formula-preparation pot, a baby bath and a crib. In the Japanese-style tatami rooms and Japanese-Western rooms, guests normally lay out the futons themselves, but the staff will do it if you ask the front desk by 6 p.m.
Dining
The breakfast buffet is served from 7 to 9:30 a.m. and the dinner buffet from 5:30 to 9 p.m. The restaurant has children's cutlery, plates, chairs, a bouncer and a buffet cart, and you can bring your stroller in with you. Baby food is available for 5 months, 7 months, 9 months and 12 months, served in the restaurant only. Breakfast and dinner can also be added on the day: breakfast is 1,980 yen for children aged 3 and over who have not yet started elementary school, and dinner is 7,260 yen for elementary school children and 1,980 yen for children aged 3 and over who have not yet started elementary school.
Baths
The communal bath has an open-air bath and a sauna alongside it; only the open-air bath is onsen. The communal bath keeps a baby bath, a baby chair, children's body soap and shampoo, a shampoo hat, a diaper-changing table, a baby bed and a diaper pail on hand, and can be used from age 0. The changing room of the women's communal bath also has a baby playpen, a diaper-changing table and a baby bed. From elementary school age, boys use the men's bath and girls use the women's bath; using the bath of the opposite gender is for children up to age 6.
Family-friendly features
The first floor has a play area open from 7 a.m. to 11 p.m., with a slide with the warmth of natural wood, educational toys and a rest space where adults can sit. Using it requires reviewing and agreeing to the terms of use, and an adult must accompany the children. It can be used before check-in and after checkout as well. From 1 to 6 p.m. and from 7 to 11 p.m., the first-floor waiting room, with a tatami play space and a soft-drink corner, is also available. The second floor has 3 play areas open from 7 a.m. to 11 p.m.: an active area for ring toss and ball play, a free table tennis area, and an area for go, shogi and nap art. There are 2 nursing rooms in the hotel; the first-floor nursing room has a water server, a microwave and a diaper-changing table, and the second-floor nursing room has a water server and a diaper-changing table. The outdoor Garden Pool operates in summer, running from July 18 to September 23, 2026, from 9 a.m. to 5 p.m., and is included in the room rate. It has a kids' space made shallower for children, and children who are not yet out of diapers use it wearing a swim diaper. There is also Local Discovery, a craft experience using acorns, shells and other items gathered on Taibusa Cape. Items available to borrow include a diaper bin, baby wipes, a formula-preparation pot, a Bumbo seat, a step stool and baby soap, while the baby-bottle washing set, children's toilet-training seats and in-house wear are limited in number. Strollers, bed guards and humidifiers are also available to borrow, but the number of each is limited. Elementary school children are charged the same rate as adults, and a facility fee applies for infants and young children, from age 0 until they start elementary school.
Access
By car, it is about 8 minutes from the Tomiura IC on the Futtsu-Tateyama Expressway. The free shuttle bus runs between Tomiura Station, Tomiura Biwa Club and the hotel, and requires advance reservation. Parking is free, with space for 150 cars.
Access & Information
| location_onAddress | 1212 Tadara, Tomiura-cho, Minamiboso, Chiba 299-2404 |
|---|---|
| directions_carAccess | About 8 minutes from Tomiura IC, about 10 minutes from JR Tomiura Station, and about 10 minutes from the "Biwa Club" highway bus stop. A free shuttle bus is available and requires advance reservation. |
| trainNearest station | Tomiura Station (Chiba) |
| local_parkingParking | Free parking for 150 cars. |
| callPhone | +81-3-5539-2634 |
| paymentsCards | VISA, JCB, American Express, Diners Club, Mastercard |
| languageOfficial site | https://grand-mercure-minamiboso-resortandspa.jp/open_in_new |
Map
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Reference price as of October 13, 2026 (stay 2026-11-07). US$ is an approximate conversion from yen. Check the booking site for actual rates.
Check rates & availability
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Frequently Asked Questions
What ages is Grand Mercure Minamiboso Resort & Spa best suited to?
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It has facilities that work especially well for babies and toddlers (ages 0 to 2) and children aged 3 and over. There is no age limit, and families with children of any age can stay.
Does Grand Mercure Minamiboso Resort & Spa have baby beds?
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Baby beds are available to rent. See the Kids Facilities section on this page for details.
Is there parking at Grand Mercure Minamiboso Resort & Spa?
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Parking: Free parking for 150 cars.
How do you get to Grand Mercure Minamiboso Resort & Spa?
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About 8 minutes from Tomiura IC, about 10 minutes from JR Tomiura Station, and about 10 minutes from the "Biwa Club" highway bus stop. A free shuttle bus is available and requires advance reservation.
What should children who are not yet out of diapers do at the pool?
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Children who are not yet out of diapers need to wear a swim diaper.
Can we bring, warm or prepare baby food and formula?
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The nursing room in the first-floor play area has a water server and a microwave, and a formula-preparation kettle is available to borrow. The restaurant serves baby food for 5 months, 7 months, 9 months and 12 months.
Are there spaces where children can play?
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There is an indoor play area on the first floor with play equipment, picture books and more. In total, the hotel has 5 play areas.
What children's items can we borrow?
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A diaper bin, baby wipes, a formula-preparation kettle, a baby-bottle washing set, a Bumbo seat, a children's toilet-training seat, a step stool, baby soap and in-house wear (sizes S and M) are available to borrow.
What time are check-in and checkout?
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Check-in is at 3 p.m. and checkout is at 11 a.m.
How much do children pay to stay?
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Elementary school children are charged the same rate as adults, and a facility fee applies for infants and young children, from age 0 until they start elementary school. Breakfast and dinner can be added on the day: breakfast is 1,980 yen for children aged 3 and over who have not yet started elementary school, and dinner is 7,260 yen for elementary school children and 1,980 yen for children aged 3 and over who have not yet started elementary school.
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Information on this page was compiled by directly consulting Official website, Rakuten Travel, Ikyu.com (English), Jalan (last verified: August 2026). Prices, availability and seasonal operations change. Please check each booking site for the latest information.
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