Hi PavolG,
thank you for your comment. Yes, I've added this path because I was there by bike. The surface quality for this field path (german: Feldweg) is the same one as the connected one on the nothern side. So maybe I've used the same line thickness as the other lines which were already there. Certainly it is not paved. If I was wrong then I want to apologize and I thank you for your attention.
Jürgen