GRAND MONday Resort TOKYO BAY MAIHAMA

■ Breakfast Information ■
Breakfast is served buffet-style.
Hours: 6:30 a.m.–10:00 a.m.
Last admission: 9:30 a.m.

■ Parking Information ■
Parking is available from 3:00 p.m. on the day of check-in until 11:00 a.m. the following day, which is the check-out time.
Requests to extend the parking period will be handled depending on parking availability on the day, and additional charges will apply.
Parking reservations must be made online. Requests cannot be submitted by entering them in the remarks section of your hotel reservation.
If you wish to use the parking facility, please apply through the parking reservation page on the hotel’s official website. After your application has been submitted, the hotel will check availability, and the parking reservation will be confirmed only after approval.
Please submit your parking application after completing your hotel reservation. Applications submitted before making a hotel reservation will not be accepted.

Parking fee: JPY 3,000 per vehicle per night
*Parking spaces are limited.*



■ For Guests Staying in the VIP Oceanfront Suite (Top Floor) ■
Guests staying in the VIP Oceanfront Suite may use the private lounge on the second floor.
Lounge hours: 10:00 a.m.–11:30 p.m.
The lounge offers drinks and light refreshments, making it an ideal place to relax after check-in or refresh yourself during your stay.
Enjoy our special hospitality and experience an even more exceptional stay.

*The lounge may be used only from check-in until check-out.*

1. Please refrain from speaking loudly or engaging in behavior that may disturb other guests.
2. Please set your mobile phone to silent mode and refrain from making or taking calls.
3. Please refrain from using the lounge for web meetings, online meetings, or conference calls.
4. Please refrain from bringing food or beverages into the lounge or taking any food or beverages provided in the lounge outside.
5. During busy periods, lounge usage may be limited to approximately 90 minutes to two hours so that more guests can enjoy the facility.
6. The lounge is exclusively for guests staying in the VIP Oceanfront Suite. Please refrain from allowing non-staying guests to use the lounge.
7. Laptop use is permitted; however, please refrain from activities involving audio or playing content with sound.
8. When taking photographs, please respect the privacy of other guests and ensure that they are not included in your photos.
9. If guests do not follow staff instructions or engage in behavior that disturbs other guests, lounge access may be refused.



■ Shuttle Bus Information ■
A convenient free shuttle bus service is available between Maihama Station and the hotel. For details, please visit the hotel’s official website.

■ Public Bath Information ■
Opening hours: 5:00 a.m.–11:00 a.m. / 3:00 p.m.–1:00 a.m.

- For hygiene reasons, children wearing diapers are not permitted to use the public bath.
- Guests aged 7 and older must use the bath designated for their gender.
- Children must be accompanied by a guardian aged 18 or older when using the public bath.
- Children under 6 years old are not permitted to use the sauna. Children aged 6 and older must be accompanied by a guardian aged 18 or older.
- Towels are not provided in the public bath. Please bring towels from your room.

■ Guests Reserving a Room with a Sofa Bed or Extra Bed ■
Additional beds, such as sofa beds, extra beds, and trundle beds, will be prepared according to the number of guests included in the reservation.
For reservations made for one or two guests, two beds will be provided. Please be advised in advance.

■ Guests Reserving a Room Type Selected by the Hotel ■
For plans where the room type has not been determined, the hotel will assign a room based on the availability and sales situation on the day of check-in.
Please note that any preferences or requests regarding the room type made at the time of reservation cannot be guaranteed.
In addition, room type changes or specific room type requests cannot be accommodated, including at check-in. We appreciate your understanding.
Depending on the room type, three or four guests may stay in a room with two double beds. Sofa beds cannot be used as beds and will be available for use as sofas only.

■ Pool Information ■
The resort pool is available year-round for both adults and children to enjoy. During the summer, it is a refreshing pool where guests can have fun, while in the winter, the water temperature is raised to create a relaxing hot pool experience.
The facilities include a pool with jet features, a pool exclusively for children, as well as cabanas and barrel saunas by the poolside.

Day Pool Hours: 8:00 a.m.–5:00 p.m.
Last admission: 4:30 p.m.

Monday–Thursday:
Adults: JPY 3,500 / Children aged 12 and under: JPY 2,500
Friday–Sunday and public holidays:
Adults: JPY 4,500 / Children aged 12 and under: JPY 3,000
Night Pool Hours: 6:00 p.m.–10:00 p.m.
Last admission: 9:30 p.m.
Adults: JPY 4,000

A fee will be charged for each day of use.
On the check-in date, the Day Pool may be used after check-in. On the check-out date, it may be used until check-out.
Please note that the pool cannot be used after check-out.
The Night Pool is available only to guests aged 18 or older.
Please contact the hotel if you wish to use the Day Pool or Night Pool.
Smoking is not permitted in the pool area. Please use the designated smoking room provided by the hotel.
Admission may be restricted during busy periods.

For other rules and information, please check the official website.


■Notice Regarding Changes to Check-Out Time■

Thank you very much for choosing our property.

The check-out time will change for new reservations made on or after August 12, 2026, as follows. We appreciate your kind understanding.

【Check-Out Time】
Reservations made by August 11, 2026: Until 12:00 PM
Reservations made on or after August 12, 2026: Until 11:00 AM

※Check-in and check-out times may vary depending on the plan.
Some plans, including short-stay plans, have different check-in and check-out times. Please check the details of each plan when making your reservation.

※This change applies to new reservations made on or after August 12, 2026. Guests who made reservations by August 11, 2026, will be subject to the conditions applicable at the time of booking.

We apologize for any inconvenience this may cause and appreciate your kind understanding and cooperation.