During my 2 week cruise to Alaska the pool was open everyday, although not many used it.
Hot tubs seemed to be very popular though. I would purposely go during first seating dinner when half the ship was eating and most of the rest getting in their cabins getting showered/dressed.
I will admit initially I did think Celebrity Cruises would have a celebrity host, celebrity entertainers or something on it. You know like there will sometimes be a theme cruise like rock and they bring some old rock stars on board, I thought they did that year round.