DIAMOND POOL
A garden pool surrounded by lush greenery under the blue sky.
Enjoy summer as a family with the adjacent toddler pool.
Experience a joyful day in a spacious and open environment.
- DATE
- 2026.7/17 FRI. - 8/30 SUN.
- TIME
-
9:00A.M. - 4:00P.M.
（Last admission 3:30P.M.） - VENUE
-
Japanese Garden at
Grand Prince Hotel Shin Takanawa- The pool will be closed on Saturday,
August 1 and Tuesday, August 4.
- The pool will be closed on Saturday,
EVENT
ICE Park Day
This event to help you forget the summer heat and enjoy the refreshing feel of ice is back again this year. Watch ice sculptures carved by our ice sculptor be plunged into the pool! Enjoy the powerful performance from up close as the sculptor carves the ice. Then enjoy the refreshing coolness of the ice.
Yoshihito Kosaka
Ice Carver / Grand Prince Hotel Takanawa ice carving expert. Winner of the Meiji Jingu Shrine Winter National Ice Sculpture Exhibition, Grand Prize at the Asahikawa Winter Festival, and numerous other international competitions. Performed at the 2026 Milan-Cortina Winter Olympics.
POOLS
-
MAIN POOL
Enjoy a relaxing time in the spacious area.
Forget you are in the city at the garden pool surrounded by lush greenery. -
KIDS POOL
A 0.6 meters deep pool where children can play safely.
Lots of fun items like water guns and swim rings are available to use free of charge.
RENTAL ITEMS
Available as a same-day purchase option.
- Enjoy a 50% discount on the prices listed below when paying with SEIBU Smile POINTS.
-
Cabana
¥20,000 -
Daybed
¥3,000 -
Parasol
¥3,000 -
Children's Playground
Free
- Pool toys and flotation gear are available to borrow free of charge.
- Parasols may be unavailable during strong winds.
- When using daybeds and parasols at both Diamond Pool and Sky Pool, payment will be required at each pool, respectively.
PRICE / FAQ /
NOTICE
Prices, FAQs, Notices
- Photographs are for illustrative purposes only.
- Please note that contents are subject to change without notice.
- All prices include consumption tax.
- We regret that we are unable to accommodate food allergies.
- At our facilities, as all food and beverages are handled in the same environment, we are unable to completely prevent contamination with minute quantities of an allergen other than the ingredients being used.
- The allergy information is based on the ingredient information (food labeling) of the ingredients used and from their manufacturers, etc.
- We may be unable to guarantee a risk-free meal to guests with the high complexity of multiple allergies.
- Please be advised that occasionally menu items change based on market availability.