MM from Saint Charles, Missouri on 6/2/2006 7:18:02 PM:
You might want to access the Katy Trail along Greens bottom road in Saint Charles. Where Greens bottom turns into Pittman Hill road is an access area that eventually runs along the bluffs. The Missouri river is close as well, I'd say 2 or 3 miles in and around mile marker 50, or 51 on the trail there is a path (by a set of benches) that goes all the way down to the rivers edge. I've taken my 5 and 9 year old on this ride and they did well.