Yeah, I was paddling in Talle creek, in the first canal, last week and felt a bump and thought (hoped) I hit a submerged log, I turned around to see a massive swirl of water and knew straight away what it was. Talle creek has always been pretty sharky and spooky, especially after heavy rain when it's murky and especially the creek mouth. The area off Burleigh headland isn't called Sharkeys for nothing.