Happy Rooster

Recently I was out fishing and ran across a situation I could use some advice on. I was traveling up a large creek channel toward the main body of water from the boat launch when I counted 15 boat spaced out across the entry way. There was no way for me get thru without coming, in my opinion, too close to someone fishing. What is the preferred way to handle this, do I idle by, go by wide open, or not go by at all. I always try to give the other person fishing the most room I can. As spring is here and the lakes get more and more congested, any help would be greatly appreciated. Thanks.