somewhere I heard you could - would like to know myself. We are going to the Dig on the excursion off the Glory - but I doubt you would have much time to spend on slides, etc. I am planning a whole week vacation to Atlantis to enjoy them all!
Atlantis does offer a day pass but I hear they are hard to get. When their occupancy levels are high, Atlantis discourages the use of day-passes so they can keep the facilities available for their overnight guests.
Hope that helps,
Ron and Sue
NCL Sunward II