This is just my personal theory, but I'm guessing that since it is privately built and maintained, there are going to be times when it is closed for "maintenance work" as a guise for holding private events there for condo dwellers, particularly from Park Lane where the VP's company is doing the developing.  The developer says it will be fenced to keep children safely inside.  Fences also keep others OUT, especially when there is a "maintenance" job (private party) happening.