I duck hunted once from a float tube last year. My dad dropped me off out of the canoe and set up the dekes and left me there. I had a bunch of ducks come in, but I managed to miss them all [&:]I also found it's easier for me to sit still in a float tube. One tip though, get two split rings, put one on your trigger guard and tie it to another one thats attached to a zipper on your jacket or somewhere similar in case you drop your gun for some reason. So yes, it is possible to hunt from a float tube, or you could just hunt off shore.