How did you get on?
It was a Southerly Cardinal buoy - top tip - points of the triangles always point towards black area of buoy.
It means stay to the South of the buoy to stay safe.
Flashes 6 + 1 long - think clock face
North is constant flashing
East is 3 flashes
South - we’ve done
West - 9 flashes
The flashes are white and can be quick or very quick