CENTRAL REPORTING POINT WADDENZEE For all reports and information. Telephone: +31 (0)88 79 74 599 VHF 4 (Safety and distress calls : VHF 16) CHANGING FAIRWAYS Due to strong currents the fairways change continuously. Actual depth may differ from the charted soundings. The buoyage is adjusted accordingly. 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. WINTER-BUOYAGE From ± December-March buoyage may be replaced by winter-buoyage. In severe winters buoyage is withdrawn. Buoyage will be replaced in order of importance. In spring it is possible that not all channels are already buoyed as charted. CABLES AND PIPELINES It is prohibited to anchor and trawl in the vicinity of submarine cables and pipelines.