I originally went to the park to take some other pictures, but this is what I got instead. There were only a couple of other people in a picnic area. The swing was swinging when I drove up and parked. It kept swinging for a minute or so as I watched, so I decided to try filming it in the hope some other energies would show up. They didn't but the swing kept swinging for a couple more minutes. Note how still the other swings are inspite of a gentle breeze.