I am completely satisfied with what my pontoon boat is capable of allowing me to do. I have the ODC Sport LT. It is an 8 foot, 16 inch diameter toon and I can launch it almost anywhere. I've been all over a 200 acre lake in N/E Washington with ease and comfort. I would NOT however take it on a river with any serious rapids. But for streams and meandering rivers it suits me well.
http://creekcompany.com/product.php?...cat=254&page=1