Today's Opening hours
10:00~21:30
Today's Opening hours
10:00~21:30
(1) Monolith Tower: Check-in: 13:30, Check-out: 10:00
(2) Hotel Hawaiians: Check-in: 13:30, Check-out: 10:00
(3) Will Port: Check-in: 13:30, Check-out: 10:00
(4) Mauna Village: Check-in: 15:00, Check-out: 10:00
It has become.
We provide "Aloha" and "Mumuu" robe for your loungewear. Please note that we do not provide yukata.
Mauna Village does not provide loungewear or sleepwear.
(1) Monolith Tower
Towels, bath towels, toothbrushes, shampoo, conditioner, face and hand soap, body soap, and a hair dryer are provided in the room.
(2) Hotel Hawaiians
Towels, bath towels, and toothbrushes are provided in the rooms. Hair dryers are also provided in rooms with baths. Shampoo and other items are provided in the large public bath.
(3) Willport
Towels, bath towels, toothbrushes, shampoo, conditioner, and hair dryers are provided in the rooms.
(4) Mauna Village
Towels, bath towels, and toothbrushes are provided in the rooms.
Shampoo, conditioner, body soap, and a hairdryer are provided in the wooden cabin.
As amenities for children aged 3 and over, we provide sandals, indoor wear (muumuus for girls, aloha shirts for boys), and light gowns for the cold season (November to May). These are available for rental next to the front desk, so please check the size before bringing one.
Sandals: 20cm
In-house wear: S size (90-110cm), M size (110-150cm), L size (150cm and up)
Gown: 110cm/140cm
We provide the same bath towels, towels, and toothbrushes as adults. If you bring wet bath towels to the front desk, we will exchange them for new ones.
The following equipment is available for rental for infants and young children. Please let us know when you make your reservation if you require it. Please note that we may not be able to accommodate your request as the number is limited.
*Please ask the hotel front desk staff if you would like to have your baby bottles cleaned and disinfected.
Guests who make reservations through the official Hawaiians reservation site will receive admission tickets for the duration of their stay. (2 days for a 2-night stay, 3 days for a 3-day stay)
If you booked through a travel agency, the conditions may be different, so please contact them for details.
If you make a reservation through Shareholder Benefits or Yuken Club, admission tickets are not included, so please bring the required number of tickets.
Even if you arrive before check-in time, please complete the check-in procedure at the front desk. After that, you can play. Please bring your own bath towels, etc., or use the rental corner.
You can leave your luggage at the accommodation's cloakroom and enjoy yourself.You can also use the amenities provided in the guest rooms (bath towels, towels, indoor wear, sandals).
Luggage storage will be congested after check-out. Guests coming by car are kindly requested to load their luggage into their car in advance.
It will vary depending on the date of stay, room type, number of people, etc.
The accommodation fees for children are as follows:
Infants (children under 3 years old sharing a bed): 2,200 yen (tax included)
Infants (children aged 3 and over): 50% of the adult rate
Elementary school students: 70% of adults
Each room has a limited occupancy, so please be sure to let us know the number of children who will be sharing the bed with you when making your reservation.
(*The above is based on the basic accommodation fee. The percentage may vary depending on the accommodation plan.)
We can also arrange for whole cakes and bouquets of flowers, so please let us know when you make your reservation.We will do our best to help you with surprise productions,Please feel free to contact us please.
Please make reservations for both whole cakes and bouquets at least three days before your stay.
You can have a message written on the plate of the whole cake. It will be served in your room or at the dinner venue.

Freshly decorated cake
Price: No. 4 2,400 yen (12cm)
No. 5 3,300 yen (15cm)
You can also change it to chocolate cream for an additional 200 yen.
Additionally, the official reservation site also offers a Hawaiians-exclusive accommodation plan perfect for celebrations, which includes a whole cake, one drink with dinner, and a lei presented by a hula girl.
We have a separate parking lot for overnight guests, separate from the one for day visitors.
Guests staying at Hotel Hawaiians or ViRport should drive their cars to the entrance of Hotel Hawaiians.
Guests staying at Monolith Tower should drive their cars to the Monolith Tower entrance.
The following cards can be used to pay for your stay.
"VISA", "Amex", "Nippon Shinpan", "UC", "Million", "JCB", "Diners", "Jacques", "Saison", "OMC", "Mastercard", "DC"
If two or more minors under the age of 18 are staying together, or if one minor is staying alone, a "Consent Form from a Parent" is required. A consent form is required for all guests. Please submit it to the front desk when you check in on the day.
Click here for the consent form for minors staying at the hotel.
"Business hours"Please see the page.
"Usage Fee"Please see the page.
Closed days in 2025
December 1st (Monday) - 5th (Thursday), January 26th (Monday) - 29th (Thursday), 2026
Please be barefoot when using the poolside, hot springs, and bathing areas in swimwear.
We recommend wearing beach sandals when moving around areas and facilities other than those listed above.

The facility is filled with a summer atmosphere, and you can wear light clothing such as swimsuits and T-shirts all year round, especially in the water park.
However, you may feel cold if your rash guard or swimsuit is still wet, or if there are water droplets on it, so please remove your rash guard after getting out of the water and dry your body immediately. It is also convenient to bring a towel.
Although the building is temperature-controlled, there are some areas where the temperature is low. Please bring something to wear over your clothes when moving around to ensure a comfortable stay.

Please note that the facility may be closed during the winter season. For more information, please contact the Leisure Group at 0570-550-550 (ext. 5422).
In addition to the nude hot springs, our hotel also has a regular pool and hot springs that can be entered in swimsuits.
If you use these facilities, you must wear a swimsuit.
We also offer a swimsuit rental service for an additional fee, so please feel free to use this service as well.
The pool and hot springs are available for admission. Slides, coin lockers, food and drink, massages, games, rental equipment, etc. are charged separately.
Slider fees and rental equipment fees arePricePlease visit the " page.
Regarding the Polynesian (Hula Girl) show, there are some unreserved seats available during the daytime show, but all seats are paid seats during the evening show.
Also, cash is required to use the lockers in the building, so please bring coins with you.
"Shows and EventsPlease visit the " page.
There is a rest and dining area on the first floor of the Amusement Building.
In the dining area, once you have finished your meal, please quickly give up your seat to the next person.
We do not allow people to reserve seats by leaving their belongings. Any belongings left to reserve a seat may be removed after a certain period of time has passed.
You are welcome to bring it with you.
There are free air pumps available by the pool.
There is also a free air vent available by the pool.

At our facility, we only allow children of the opposite sex up to preschool age 6 years old to enter the baths and changing rooms.
*Elementary school children are not permitted to use this facility.
In the children's pool zone "Wai Wai Ohana," we have a baby pool called "Angel's Water" that can be used while wearing water diapers. Children who wear diapers on a daily basis are not allowed to use pools other than those mentioned above, or hot springs where you can enter in a swimsuit. However, they are allowed to walk around the poolside and dip their feet in shallow water. There are no restrictions on entering the hot springs (baths) naked. "Wai Wai Ohana" has a nursing room and diaper changing space.

You may wear rash guards or other clothing sold for use in the water.
Precautions when using the pool
Water depth and temperature settings for each pool
| Water depth | Set water temperature | |
|---|---|---|
| Large pool | 120cm | 29 ~ 31 ℃ |
| Floating pool | 100cm (deepest part) | 29 ~ 31 ℃ |
| Children's pool | 80cm | 29 ~ 31 ℃ |
| Toddler pool | 50cm | 29 ~ 31 ℃ |
| Baby Pool | 10cm | 31 ~ 36 ℃ |
| Mauna Black landing tank | 100cm | 28 ~ 32 ℃ |
| Kapuani Falls landing tank | 95cm | 28 ~ 32 ℃ |
Other prohibited acts and prohibited items
Prohibited actions at the poolside
Please do not cause trouble to other customers or engage in dangerous activities.
If you do not follow the instructions of the lifeguards, you will be asked to leave the facility.
Items that are prohibited from being used or brought into the pool
Items that are prohibited from being brought into or around the pool
*Each pool may be closed suddenly for inspection or supplementary lessons.
Construction schedule here.
Please refer to the following.
Important notes for use of the three water slides (Mauna Black, Laki River, Kapuani Falls) and Big Aloha

Mauna Black and Laki River usage guidelines
Kapuani Falls, Big Aloha Terms of Use
*Each slide may be closed suddenly due to statutory inspections or supplementary lessons.
The construction schedule isclick here.
For customers who have purchased a slider combined ticket
If you are using a wheelchair or stroller, please drive to the entrance of the water park. Please drop off wheelchair users and stroller users before using the parking lot.
The route for wheelchairs and strollers in the building is as follows:"Barrier-free map"
Access by major means of transportation
※For more information"Transportation Information" page .
For day visitors, the fee is 1,000 yen per day (free for up to 2 hours).
Free for guests staying at the hotel.
*For more details, please seeAccess by car"Please refer to the.
Iwaki City is located in the southeast of Fukushima Prefecture, and is blessed with a relatively small temperature difference and a mild climate all year round. Snow rarely falls except in mountainous areas. However, as snow is a natural phenomenon, please be careful when checking for information immediately before it snows.
You can pick it up from the morning of the day you check in.
Please inquire at the front desk of Spa Resort Hawaiians Monolith Tower.
Check-in is from 15:00 to 17:00, and check-out is at 10:00.
Early check-in and late check-out are not available.
Check-in is at the Spa Resort Hawaiians Golf Course clubhouse front desk.
Guests can use the large public bath in the golf course clubhouse.
Opening hours: 13:00-21:00
Please send it to Mauna Village with your reservation name and the dates of your stay clearly written on it. We will keep it until the day of your stay and hand it over to you at check-in.
[Mauna Village Inclement Weather Information]
Please read the following before using Mauna Village. Guest safety is our top priority, and we may close the glamping facility if we deem it unsafe.
If bad weather is predicted, we will notify you by email starting four days before your check-in date. In addition, the facility may be closed due to sudden changes in weather, even on the day of your stay. If it is decided that the facility will be closed, we will notify you by email or phone. In this case, no cancellation fee will be charged, but if we receive a cancellation request from you before the closure is decided, a cancellation fee will be charged.
Face towels, bath towels, toothbrush sets, and hair dryers (in the cottages and shower building) are provided.
In addition, shampoo, conditioner, body soap, razors, basic cosmetics, combs, and hair dryers are provided in the large public bath at the golf course.
Aloha Mumuu does not provide room wear rental or pajamas.
The largest tent, the Lotus Tent, has four single beds and can accommodate up to six people. The other tents have two semi-double beds and are recommended for two people, but can accommodate up to four people, such as families. If there is one more person staying on the bed, they will use a cot (camping cot) and sleeping bags, and if there is two more people staying on the bed, they will use a cot and an inflatable mattress (camping mattress) and sleeping bags.
We do not accept requests for specific rooms, but we will do our best to accommodate your request.
Free Wi-Fi is available in the tent area.
Mobile routers are available for cabin guests. Please request one at check-in.
Available in all guest rooms.
Yes, you can. Please use the security box (safe) inside the tent for your valuables.
There will be a quiet period after 22:00 PM.
Incidentally,The gates are closed from 22:30 PM to 6:00 AM, and entry and exit is not permitted except in emergencies.
Please use the private parking lot and walk to your room.
Pets are not allowed.
Smoking is prohibited throughout the glamping grounds. Ashtrays are provided at the entrance to the clubhouse.
There is a shuttle bus.
【Click here for details】
Available for free.
*You must apply for the free discount at each front desk.
Yes, you can. When you arrive at Hawaiians, please get off at "Monolith Tower."
Hawaiians admission tickets will be available at the Monolith Tower front desk.
For information on "Hawaiians Express"click here】(※Advance reservation required)
Balls, badminton sets and mölkky are available free of charge.
Paid rentals include various table games (starting from 500 yen), a bonfire and marshmallow set (1,000 yen), fluffy s'mores making (1,500 yen), handheld fireworks (1,300 yen), and a Polaroid camera with 10 sheets of film (1,000 yen).Click here for details】
Only drinks may be brought in (※Bornement fee 2,200 yen/room).
There is no corkage fee for drinks equivalent to one 500ml plastic bottle per person.
For hygiene reasons, bringing in food and cooking utensils is prohibited.
Any food items you bring with you will be kept at the front desk and returned to you when you leave.
Ingredients can be added.【Click here for details】
For consecutive nights, we will change some of the menu and ingredients for dinner.
Alcoholic beverages including champagne and various soft drinks are available at Village House from 17:00 to 22:00.
The BBQ corner has a special curtain surrounding the table and BBQ grill.
For dinner, we offer children's favorites such as hamburgers and seafood, and for breakfast, we offer pancakes and macaroni salad for young children.
The tent can be used as a bed for small children to sleep in.
If you can sleep alone, we highly recommend trying out a sleeping bag. In the cabin, you can push two beds together to create space for sleeping together.
Mauna Village is located in the mountains, surrounded by abundant nature, so insects may appear depending on the season. Please bring your own insect repellent.
Please inform the staff. Please do not make unnecessary noise or approach the animals.
Filming for television programs that primarily introduce the facility, and for publishing articles, is free of charge.
If you provide a shooting location, the following shooting fees will be charged.
・Basic fee
Still photography = 20,000 yen/hour
Movie shooting: ¥50,000/hourOther costs such as play equipment and meals are at actual cost.
The following materials are available:
If you contact us, we will provide you with information on the environment in which you can view the content.
・Leisure facilities (exterior, pool, hot spring, slide, gourmet food)
・Accommodation (exterior, guest rooms, restaurant, food, bathroom)
Yes, you can. However, we will not allow you to enter the bath area (where you must enter naked) during business hours.
Photography is permitted in the baths outside of opening hours.
As a general rule, we ask that you take photos during business hours.
If adjustments are possible due to facility management, please contact us.
There is also accommodation within the facility, so even if your interview requires an overnight stay, you can avoid the hassle of arranging transportation and accommodation.
We do not allow private reservations during business hours.
We may be able to accommodate reservations outside of opening hours.
However, if the entire facility is closed, it may be possible to rent the entire facility under certain conditions.
In addition to cash payments within the facility, the following credit cards and electronic money can be used at the park front, permanent shops, and restaurants.
*Each payment system may be unavailable due to maintenance, etc.
If you are carrying cash around the pool, etc., it is convenient to bring a water box. Hotel guests can have it charged to their room.

We will not allow anyone with tattoos to enter the facility.
We do not allow pets other than assistance dogs to enter our facility, and we do not have any facilities or services to take care of pets.
If you are staying at a hotel or inn that is a member of the Iwaki Yumoto Onsen Ryokan Association, you can purchase a "2-day admission ticket" that is cheaper than a 1-day ticket and allows you to enter for two days. Tickets are only sold at the counter of each hotel or inn.
For more information,Iwaki Yumoto Onsen Ryokan Association website .
There is a first aid room in the water park, where resident nurses will provide first aid.
[Time] 12:00~18:00
Hotel Hawaiians
Monolith Tower
Willport
パ ー ク
*We are not responsible for any problems that may arise when using wireless LAN.
*The user is responsible for setting up the equipment for connection.
*Only the 5GHz frequency band is available. The 2.4GHz band cannot be used.
Admission tickets are valid for one-time use only and re-entry is not permitted.
If you would like to have your belongings taken to your car, please contact the front desk staff.
The accommodation admission ticket allows you to enter and exit the hotel as many times as you like during your stay, from the day of your stay until the day you check out.
The facility is located approximately 8.3 km from the coast in the shortest straight line, and the entrance is located approximately 76.2 m above sea level.
If you can't find your question,
By phone, email or chat
Please contact us.