Codger-it is even more fun to watch on really busy days when they load 40-50 boats in the large lock! It can be hilarious. One guy will have forgotten fenders, one guy doesn't have 35' lines for the large lock. It is alwys something and always entertaining.
We have lived in Seattle for 17 years now, and it is still my favorite place in Seattle. We first lived not far from the Locks and starting when my daughter was about 3, we would go down almost every Sunday morning. It was our kind of special "Dad/Daughter" thing. Now, at 17, she will still go down there with me once in a while. Also, at 17, she can take the boat through the locks pretty much on her own.