I was there the week before Easter and worked out a few times......Went into the locker room. I know the changing rooms were closed but I'm not positive about the showers. Out of curiosity....why would you need the showers for pool days? They have an outdoor shower to rinse off or just use your room?
worst case scenario, you can stay in your suit and use the outside shower to wash your hair. You can also go into the locker room, you just may not have a private changing room to use once in the locker room