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Nanki Shirahama Marriott Hotel
forumWhat families say
Families praise the five private-hire baths, the top-floor communal onsen bath, and the summer guests-only outdoor pool (57 cm-deep children's zone). The convenient layout of the playroom, baby room and nursing room gathered on the 4th floor, along with Marriott's Welcome Baby Plan (limited to 5 rooms per day), are also well received.
Categories
Kids Facilities
4th-floor playroom, baby room and nursing room
4th-floor playroom, baby room and nursing room
Family-friendly spaces are gathered on the hotel's 4th floor: a playroom (8 a.m.-9 p.m.) with picture books, educational toys and a drawing area, a baby room with a microwave, a nursing room available 24 hours, and a diaper-changing space.
- •Playroom hours are 8 a.m. to 9 p.m.; the nursing room is available 24 hours
- •The diaper-changing space is on the 4th floor
- •The baby room has a microwave for warming baby food you bring yourself
11th-floor communal onsen bath, open-air bath and five private-hire baths
11th-floor communal onsen bath, open-air bath and five private-hire baths
The communal bath is on the hotel's top (11th) floor, fed by Shirahama Onsen - one of Japan's three oldest hot springs (a sulfur-sodium-chloride hydrogen carbonate spring). It has an open-air bath overlooking the Pacific Ocean, plus five family-friendly private-hire baths.
- •The five private-hire baths are JPY 3,000 on weekdays and JPY 3,500 on the eve of holidays, holidays and peak season, for 50 minutes per room (tax included)
- •Private-hire bath hours are 5-10 a.m. and 3 p.m.-midnight on weekdays, and 5-10 a.m. and noon-midnight on Saturdays and Sundays
- •The men's and women's sides of the bath switch daily
- •Guests with tattoos may bathe only if they can be fully covered with two 8 cm x 10 cm cover stickers
- •Reserving a private-hire bath lets children in diapers bathe in the onsen with their family too.
Outdoor pool (summer only, guests only)
Outdoor pool (summer only, guests only)
- calendar_monthSeason:7/1〜9/30
- water_dropWater depth:Approx. 57 cm
A summer-only outdoor pool with two sections: a 120 cm-deep main pool and a 57 cm-deep children's zone. For hotel guests only.
- •Hotel guests only
- •Operating hours vary by day
Grill & Dining G (Japanese and Western buffet breakfast, kids' menus)
Grill & Dining G (Japanese and Western buffet breakfast, kids' menus)
The 1st-floor restaurant Grill & Dining G serves a Japanese and Western buffet breakfast, with two kids' menus for ages 6-12 and 3-5, plus baby cots and child chairs available.
- •Baby food is not provided in-house; bringing your own is required (it can be warmed in a microwave)
- •Allergy accommodations must be requested at least 3 days in advance
- •Dinner is 5:30-9 p.m. (last entry); breakfast starts at 7 a.m.
- •Yukata and slippers are not permitted in the restaurant
Baby and kids' equipment rental
Baby and kids' equipment rental
Childcare support equipment is available to borrow for use in your room. Marriott's Welcome Baby Plan can be booked, limited to 5 rooms per day. A crib and a bed guard are available to borrow in the guest room.
- checkCrib (JPY 1,210, fee applies, reservation required)
- checkBed guard (free)
- checkBath chair
- checkThermometer
- checkIce pillow
- checkNail clippers
- checkAllergy-friendly pillow
- checkBlu-ray/DVD player
- checkAir purifier
- checkHumidifier
- checkWheelchair
- checkChildren's yukata (sizes 90/110/120/130/140/150 cm)
- •The Welcome Baby Plan (for families with children aged 0-2, limited to 5 rooms per day, including early check-in and a private-hire bath perk) is available
- •The Welcome Baby Plan comes with a free private-hire onsen bath as a perk.
- •Crib rental is available for a fee of JPY 1,210 per crib.
Overview
Nanki Shirahama Marriott Hotel is a resort hotel about 5 minutes on foot from Shirarahama Beach, with a communal onsen bath, an open-air bath and five private-hire baths on the top (11th) floor. It is family-friendly with an outdoor pool (July 1-September 30, guests only, 120 cm deep plus a 57 cm-deep children's zone), a 4th-floor playroom, baby room and nursing room, and Marriott's Welcome Baby Plan (for families with children aged 0-2, limited to 5 rooms per day).
The location is superb - about 5 minutes on foot from Shirarahama Beach. On the top (11th) floor, the communal onsen bath (a sulfur-sodium-chloride hydrogen carbonate spring) has an open-air bath overlooking the Pacific Ocean, and five private-hire baths (50 minutes per room; JPY 3,000 on weekdays, JPY 3,500 on the eve of holidays, holidays and peak season) let families bathe together in privacy. The men's and women's sides of the communal bath switch daily.
Pool
The outdoor pool is open only in summer, from July 1 to September 30, and is for hotel guests only. It is 120 cm deep with a 57 cm-deep children's zone, so even small children can enjoy it safely. The hotel's 4th floor brings together a playroom (8 a.m.-9 p.m.), a baby room (with a microwave), a nursing room (24 hours) and a diaper-changing space.
Dining
Baby food is not provided in-house, so bringing your own is required (it can be warmed in the microwave in the baby room). The 'Welcome Baby Plan' (for families with children aged 0-2, limited to 5 rooms per day) is a Marriott original package that comes with perks such as early check-in and a private-hire bath. At the restaurant 'Grill & Dining G,' a Japanese and Western buffet breakfast is served, with kids' menus for ages 6-12 and 3-5, and baby cots can be used. With the late checkout service, guests can stay until 3 p.m.
Access & Information
| location_onAddress | 2428 Shirahama-cho, Nishimuro-gun, Wakayama 649-2211 |
|---|---|
| directions_carAccess | About 10 minutes by car from JR Shirahama Station, about 6 minutes by car from Nanki-Shirahama Airport, and about 10 minutes by car from Adventure World. |
| trainNearest station | JR Shirahama Station |
| local_parkingParking | 150 spaces (the hotel has officially announced that parking will become paid starting August 2026; see the official website for rates). |
| callPhone | +81-739-43-2600 |
| paymentsCards | VISA, JCB, American Express, Diners Club, UC, Mastercard |
| languageOfficial site | https://www.shirahama-marriott.com/open_in_new |
Reference price as of August 28, 2026 (stay date 2026-09-19). Please check the booking site for actual rates.
Frequently Asked Questions
Can I rent a crib or bed guard?
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Yes. Both a crib and a bed guard are available for rental. The crib carries a fee of JPY 1,210 per unit (tax and service charge included), while the bed guard is free. Please request either when you make your reservation.
When can kids use the pool?
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The outdoor pool is open only in summer, from July 1 to September 30, and hours vary by day during that period. It is 120 cm deep with a 57 cm-deep children's zone, and is for hotel guests only.
Is baby food available at the hotel?
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No, baby food is not provided in-house, so you'll need to bring your own. It can be warmed in the microwave available in the 4th-floor baby room, and a kettle is provided in every room.
Can you accommodate food allergies?
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Yes, with advance notice. Please let the hotel know at least 3 days before your stay. Depending on the severity of the allergy, you may be asked to fill out a dedicated inquiry sheet and share the details by phone, email or fax.
Where can I change my baby's diaper?
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There is a diaper-changing space on the 4th floor, in the same area as the playroom, baby room and nursing room.
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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.
We take care to keep information accurate, but always confirm the latest details on the hotel's official site and booking sites before you book or visit.