Checked out Melton Hill Park
It is out off Hardin Valley Road.  You turn right between Elem School and NIce New FOOD City and then at next intersection turn left and just keep going untill you run into park.  It is on a penninsula with water all around and views of ridges past Oak Ridge.  There are 2 miles of mowed grass trails and some rocky, dirt trails close to the water behind play ground.  We parked close to water and volley ball courts then hit about 3/4 of mile of rocky trail and Gracie and dogs enjoyed the neat rock formations. Then we ended up on a mowed trail and came back out to playground.  We then headed up road like you are leaving again but crossed it and headed up the mowed trails and found the airplane field and watched some model planes being flown. After that we wandered down to waterfront on other side.  You look over the clinch and there is more melton hill park on other side only reached out off Bethel Valley road.  They have cross country meets out here in the fall (KTC) and they are really neat scenic trails which are perfect for those starting to hike or just out like us for a family Sunday afternoon walk. Dogs allowed and pretty sure bikes allowed too.  Lots of places to picnic and in summer boating, and swimming.