The easiest way is by shuttle bus from the fair. Simply get off at P1 at the stop between the fields 3 and 4. When you get off from the bus, walk straight across the road toward the marquee (everybody knows where the "Festzelt" is) and turn into the third last row on the left. There are signs with field and row number.
By car or taxi you start from Caravaning Center or marquee. If you come from the marquee and would go straight (unfortunately are the toilet houses in between) you come right at us!