Go left in front of the castle entrance and turn right on the access road, along a pebble wall. At the intersection, leave the gate on the left and continue straight.
The path, at first in the undergrowth, crosses a meadow.
At the fork (bench), stay in the left lane.
50m to the left is a belvedere, with a beautiful view.
Return to the path. Continue to the disused gas exploitation site.