V.M.
I wouldn't worry about having an activity right before going into Deanna Rose. If you have the cake and ice cream first that will be enough. The kids will be excited enough to see the animals and just to go inside that an activity doesn't seem necessary. What may be a good idea is giving each child
(2) quarters to buy food for the animals, maybe put it in a little bag with stickers and some candy or just by itself, of course, you decide how much to spend! I know it can get expensive. Anyways, I hope your son has a great birthday at Deanna Rose!
V.