bfish, that Yak Attack VisiCarbon Pro flag/light combo is exactly what I planned to get. My local kayak store is out of stock at the moment. The store in Raleigh has them, so next time I go that way I'll pick one up.

I keep a whistle on a lanyard clipped in my PFD pocket, but that guy was moving so fast and his motor was loud enough that I doubt he would have heard any whistle. I was paddling closer to the bank as he was coming on, but he was hauling @-- and I didn't have a lot of time to do much except wave the paddle.

Jim