I always dress my Grandson in "water park" clothes...

I always dress my Grandson in "water park" clothes/shoes since he makes a bee-line right to the water feature room first thing. I can count on over one hour if not more in that space alone. Then conveniently walk across the hall to change him in the bathroom.
We then take the elevator all the way up to the 3rd floor and work our way through, same for the 2nd & 1st floors.