ktytrfan from Hannibal, Mo. on 7/5/2009 6:50:03 PM:
Are the youngsters already riding around 40-45 miles now? If not, I, too, would decrease the mileage some--maybe start at a point a little closer to the St. Louis area if you're just doing one way. Riding the Katy is fun when given enough time to stop, look at some of the great scenery, take some pictures, read some of the points of interest along the way, etc. 13-15 is a great age and one where roads are being decided on in life, too; so make it as enjoyable as possible and ask them what they want from the trip.