Blackfish Sound was very frustrating for me with the fog. I didn't too much when there was no wind. But sailing from Sunday Harbour there was wind. When I got to Lizard Pt on Malcom Island I had good wind and a fog bank so solid I couldn't justify sailing into. There is something very unsettling about fog horns. Ended up watching two cruise ships and the above tug and tow come out of that bank.