Kiest Park had a fine tree-lined, shaded running and biking path, a favorite spot for South Oak Cliff residents to exercise and people watch. In fact, it was becoming so popular that it would be uncomfortably crowded on good-weather days. The asphalt was cracked, buckled and even missing in a couple patches. In short, it was in need of a serious makeover. And that's what it's getting, as the city tears up the old blacktop and lays down fresh concrete, widening the paths and adding some new ones while they're at it. The temporary fencing blocking off areas still in progress is ugly and inconvenient, but it looks like it will be worth the wait.