You can buy a second fitness card in Hong Kong Comfort City. In gymnasiums in Hong Kong, many fitness cards can only be used in one branch. If you want to use them universally, you need to pay extra. From this perspective, Comfort is cost-effective. This card can be used in 2 1 branches in Hong Kong. Kang Hui Hotel Hong Kong is located on the 3rd-6th floor of Hollywood Business Center, No.610 Nathan Road, Mong Kok, Hong Kong.