My opinion is I REALLY hate getting squirted by those water canons, if I had my own way I would have them ripped out. I too don't like water splashed directly in my face or on my camera if I'm using it. So take the mega super soaker and get them back.
I saw it on Storm Surge once where they were soaking this woman and she was not impressed, then when she got off the rides she went over and emptied a bottle of water over people using the soaker. But what the stupid cow did not realise was that in the time it took her to get off the ride the people on the guns has changed, so she soaked people who didn't even soak her.
So the moral to that story is take the giant water pistol on the boat and squirt the right people!
If you go down to the woods today