It seems to me that either he walked back across the creek, up the hill, across the bridge, down the path and to the public parking before it was dark, or his car was parked somewhere on the access road under the bridge.
Were there any other people in this popular teenage-girl friendly park close to 5 PM who walked to the bridge that day?
Were there any other people in this popular teenage-girl friendly park close to 5 PM who walked to the bridge that day?