DEPTHS AND AIDS TO NAVIGATION
The channel depths are liable to frequent change and the buoys are moved accordingly. 
Charted details cannot always be relied upon.

TIDAL STREAMS
Attention is drawn to the strong tidal streams in these waters.
For tidal streams and tidal information see: HP 33 Tidal heights
and streams for coastal waters of the Netherlands and adjacent waters
and HP 33D-NLTides published by the Netherlands Hydrographer.

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

SMALL CRAFT BEACONS
The beacons mark at least the 2,0 metre depth contour (ħApril-October).
More beacons can be met than charted.