SOUNDINGS IN METRES
Reduced to Volkerak datum (=NAP)

HEIGHTS IN METRES
Above Volkerak datum

(The waterlevel can vary between NAP-1dm ans NAP+1,5 dm)

The beacons mark at least the 1,5 metre depth contour (ħApril-October).
More beacons can be met than charted.

Outside the connecting lines between the lighted fairway beacons 
regels (fishing stakes and traps) can be met 50 to 100 metres apart.

SPEED RESTRICTIONS
In these waters restrictions for sailing with fast
motorboats and waterskiing are in force.