From a Former Bell Slough New Guy
I just moved here a few months ago and walked into Bell Slough about 7 times. It can be done but you have to be very slow and methodical about or you will get wet (as i did about 3 of the 7 times). The water is up since then, and walking has become about twice as diffucult. I will say that the hunting is only fair, with most of the ducks being banged by the boaters closer to the lake.
PM me tho as i just bought a boat (due to getting wet one too many times) b/c my huntin partners are movin out of the area next week, and i may have an extra spot in my boat for a few cases of beer. haha