Unless there's been a change since I last went to the park, dogs are only allowed off the lead in one area of the park, the section with the concrete at the bottom corner. Elsewhere dogs have to be kept on a lead. This arrangement always seems to have worked quite well in the past, and I have never been bothered by dogs. I certainly wouldn't picnic in the field where the dogs run free. This arrangement seems to keep everyone happy, although I accept dog owners need to abide by the rules for this to work, and for the most part it does.