When its foggy around our area, I am so glad I have radar. Georgian Bay is no place to lose track of where you are and not see other boaters. Narrow channels, millions of granite shoals, and lots of boat traffic. When I bought my radar years ago I debated whether I "needed" it enough to justify the expense. The first time I really needed it was a foggy misty evening and I was so glad I had it. I use mine in chart overlay mode. I know that is an amateur way to do it, but I much prefer to see both the chart and the radar imagery perfectly aligned on one screen.
