Yes, it is definitely the boaters going too fast in fog that scares me, not so much the fog. We had a guy die when a 40+' powerboat, traveling way too fast, rammed into the shoreline in very poor visibility. The driver now faces homicide charges in an upcoming court date. His alleged response was that there was trouble with the electronics and they were supposed to be driving the boat. The boat was equipped with auto pilot, radar, gps and a night vision camera, all of which didn't save the life of the guy riding along. What a bogus response or excuse, I thought. I have been in thick fog (sometimes not by choice) and have negotiated shipping lanes while racing (and almost got run over) and on power boats trying to find my way to my destination with lots of fishermen out there doing their thing. It would be crazy for me on a powerboat to have any speed underway in poor to nill visibility. So, putt along I did and no one got hurt.