I know there's an addmition fee but is there another for using the facilities?

After you pay the admissions fee, there is no additional fee for using the pools & saunas. However, there are additional fees for certain special services, massages, facials, scrubs, food and drinks.

Yes there is an admission fee. If you want a facial or a body scrub there is a fee.

I meant like for using the pool areas and saunas.