Thank you very much for your continued patronage of GRAND MONday Resort Tokyo Bay Maihama.
For new bookings made on or after 12 August 2026, the check-out time will be changed as follows.
We would be most grateful for your understanding.
For bookings made on or before 11 August 2026: Check-out by 12:00 PM
For bookings made on or after 12 August 2026: Check-out by 11:00 AM
*Please note that check-in and check-out times may vary depending on the package.
Some packages, such as the Short Stay Package, have different times to those listed above, so please check the details of each package when making your booking.
*This change applies to new bookings made on or after 12 August 2026. Guests who have made a booking by 11 August 2026 will be subject to the terms and conditions applicable at the time of booking.
Unlock Exclusive Perks: Join hotel MONday Today
New Members - Score an instant 10% off your stay!
Don't miss out on these VIP treats and more! *Short-stay plans and other packages with pre-set check-in times are not eligible for the 2:00 PM early check-in.
[Children's accommodation]
・Up to two children aged 6 or under may stay free of charge when sharing a bed with an adult.
If you wish to have a child share a bed, please enter the number of children under ‘No meals or bedding’.
The maximum number of children permitted to share a bed is as follows:
When staying with one adult: Up to one child may share a bed
When staying with two or more adults: Up to two children may share a bed
・ If a child requires a bed, they will be charged the same rate as an adult, regardless of age.
・ Amenities, slippers, towels and hotel robes are not provided for children sharing a bed. ・ If you book for more children sleeping in the same bed than the stipulated number above,
any excess children will be treated as adults and charged the same accommodation rate as adults. Please pay the additional charge on site.
・ If the total number of guests, including children treated as adults, exceeds the room’s capacity, a separate room booking will be required.
[Information on Using the Car Park]
On the day of your stay: 3:00 PM – until 11:00 AM checkout the following day
Extensions to these hours will be determined based on parking availability on the day of your stay.
Additionally, an extra fee will apply.
■ Important Notes
Parking is available by online reservation request only. (You cannot make a reservation by filling out the remarks section or similar fields.)
If you wish to use the parking lot, please submit your request via the parking reservation page on our official website.
After you submit your request, the hotel will check availability, and your reservation will be confirmed only if approved.
Please submit your request after making your hotel reservation. We do not accept parking requests prior to making a hotel reservation.
The parking fee is 3,000 yen per vehicle per night.
*The number of parking spaces is limited.
◆Our neighbouring group hotels◆
MONday Maihama 1 and Maihama 2 are close by, and share what makes a Maihama stay easy: a free shuttle to Tokyo Disney Resort® and a rooftop pool.
If your preferred dates are unavailable at this hotel, or if a lower rate would suit you better, please consider taking a look.
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[Notice Regarding Changes to Check-out Times]
Thank you very much for your continued patronage of GRAND MONday Resort Tokyo Bay Maihama.
For new bookings made on or after 12 August 2026, the check-out time will be changed as follows.
We would be most grateful for your understanding.
For bookings made on or before 11 August 2026: Check-out by 12:00 PM
For bookings made on or after 12 August 2026: Check-out by 11:00 AM
*Please note that check-in and check-out times may vary depending on the package.
Some packages, such as the Short Stay Package, have different times to those listed above, so please check the details of each package when making your booking.
*This change applies to new bookings made on or after 12 August 2026. Guests who have made a booking by 11 August 2026 will be subject to the terms and conditions applicable at the time of booking.
Unlock Exclusive Perks: Join hotel MONday Today
New Members - Score an instant 10% off your stay!
Don't miss out on these VIP treats and more!
*Short-stay plans and other packages with pre-set check-in times are not eligible for the 2:00 PM early check-in.
[Children's accommodation]
・Up to two children aged 6 or under may stay free of charge when sharing a bed with an adult.
If you wish to have a child share a bed, please enter the number of children under ‘No meals or bedding’.
The maximum number of children permitted to share a bed is as follows:
When staying with one adult: Up to one child may share a bed
When staying with two or more adults: Up to two children may share a bed
・ If a child requires a bed, they will be charged the same rate as an adult, regardless of age.
・ Amenities, slippers, towels and hotel robes are not provided for children sharing a bed.
・ If you book for more children sleeping in the same bed than the stipulated number above,
any excess children will be treated as adults and charged the same accommodation rate as adults. Please pay the additional charge on site.
・ If the total number of guests, including children treated as adults, exceeds the room’s capacity, a separate room booking will be required.
[Information on Using the Car Park]
On the day of your stay: 3:00 PM – until 11:00 AM checkout the following day
Extensions to these hours will be determined based on parking availability on the day of your stay.
Additionally, an extra fee will apply.
■ Important Notes
Parking is available by online reservation request only. (You cannot make a reservation by filling out the remarks section or similar fields.)
If you wish to use the parking lot, please submit your request via the parking reservation page on our official website.
After you submit your request, the hotel will check availability, and your reservation will be confirmed only if approved.
Please submit your request after making your hotel reservation. We do not accept parking requests prior to making a hotel reservation.
The parking fee is 3,000 yen per vehicle per night.
*The number of parking spaces is limited.
◆Our neighbouring group hotels◆
MONday Maihama 1 and Maihama 2 are close by, and share what makes a Maihama stay easy: a free shuttle to Tokyo Disney Resort® and a rooftop pool.
If your preferred dates are unavailable at this hotel, or if a lower rate would suit you better, please consider taking a look.
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■ Premium hotel MONday MAIHAMA ViewⅡ