I'm thinking about taking my dad's 22' boat up the big su for spring bear. I have heard that there are plenty of black bear up that way. Some people warn me that you have to know the channels or you can find nasty shallow spots. I have limited boating experience, and have never really done anything on the big su. If I stay in the main channel will I be ok? or is it really that bad? Is there a somewhat productive area on the big su, that a boating novice can get to? What about the Talkeetna? I've heard all kinds of stories about the bears being more abundant than squirrels up that way. Is that river able to be run by a novice?