It is very rarely still because of the strong tidal currents.
The deep water around the island results in only moderate tidal currents.
Tidal currents are caused in two main types of situation.
Because the sound is long, and in places narrow, the tidal currents are fairly strong.
Tidal currents in this area can reach up to 4 knots.
The river at this point has always had hazardous tidal currents, the cause of the 1960 collision.
There can be tidal currents since the water levels on either side of the amphidromic point are not the same.
Tidal currents commonly range between 2 and 3 knots in the pass.
That meant the tidal currents of the Zuiderzee were still present.
The potential of electric power generation from marine tidal currents is enormous.
