室内泳池以干净的水质而自豪，通过自动调节水温维持适合游泳的舒适水温。此外，还专为孩子们准备了氛围温馨的游戏池。

[Information on changing the indoor swimming pool hours]
From January 6, 2025, the indoor swimming pool usage time will be changed as follows.
▶ Monday-Thursday 13:30 - 22:00
▶ Friday-Sunday 06:00 - 22:00
* Holidays, Summer seasons, and Grand Mercure's Closure day(4th Tuesday of month) 06:00 - 22:00.
* Operation hours may change depending on the operating situation.