Free fetch (5 km) over grassland in the prevailing wind direction ( SW)  small town  of Lopik  to the east of the tower. Line with farms running East-West about 2 km North of the tower.
Larger scale: downwind of the Rotterdam harbour, in the middle what is called the green hart of NL, a 50 * 50 km peatland- grassland aerea.  Bordered by the the randstad city ring that  runs from Roterdam, the Hague, Leiden, Haarlem, Amsterdam, Utrecht.