[AVGWarhawk]

In the southern areas the North Sea's depth is less than 150 ft (50 m), but in the north it slopes down to about 600 ft (200 m).

Along the southwestern coastline of Norway, the North Sea reaches a depth of near 1,200 ft (400 m).

So, you are saying the entire North Sea is 20m? First time in 2 years anyone has mentioned this As you can see, the southern portion is about 50m. Where are you patrolling?