Parks that arent an hour drive

I am looking for parks that are less than an hour drive (im in north knox). Ive lived in various parts of Knoxville all my life and am only now getting into discovering the roaming trails ive heard about growing up. Ive checked out Ijams, I recently checked out Knoxville Botanical and Arboretum. I also went to 7 Islands sometime back. These places are great, but im looking for specifically: easy trails, picnic-like areas, would be amazing if there was clean bathrooms, maybe some structures to get under if it rains?(Gazebo, etc.), far enough from traffic areas to not be able to hear vehicles,(places that are low traffic in general) Is this even possible ×^×