How do I get to the north sea every time I try I am stoped and sent back?

It should have looked like this:
-----
l 0 l 0
l -----------------
l ---- 0
l l 0 l 0
- l- -- l 0
l ---- I 0
l 0 l 0 l 0
- - - l l 0
I---- 0
0 I 0 0
There is a precise way to get through the fog. If you look at your map, there are 7 rocks scattered around. First go north until you are at the centre of the first 4 rocks (forming a square). Now go east, between the 2 rocks that form the right side of the square. Go up past the north east corner of the square (you are now outside of the square) and back inside through the top 2 rocks (forming the square). You are now back at the centre of the square. Go west and exit between the 2 rocks that form the left side of the square. Go up until you are just over the next rock. Make a loop circling the rock (ending where you were before). Now go up to the topmost rock. Keep going until you are over the topmost rock, and loop back down until you have gone over it. Now you can just go in a straight line underneath the top north east rock.