They could do a walled-off walkway through the Kidzone area during the event. Even with everything bulldozed, the safe walkable paths could be placed like some of the extended sprung tent areas by covering the walkways with some form of cover on whatever surface they could put, and elevate some parts of them if needed.
As for the food booths that were over there, I don’t think they’ll be relocated, since only a large portion of Kidzone is getting a tear down.