After the rain.
As I walk up to my position to take the photo, huddled under an umbrella I use to shelter the camera. The rain stops and a light drizzle falls.
Everything hangs wetly, drops run down branches and fall off the tips of leaves. Water gurgles down the one side of the track, forming mounds of froth as the rough surface churns it roughly.
Hidden in a dry hollow an acorn cup has shed the dried acorn.