The route is 43.7 miles in total, with the cafe stop at 19.7 miles and with 2,010 ft of climbing. So it’s going to be a bit of a bumpy one, and with the cafe stop at less than halfway let’s take it easy on the way out.
You can see the route at https://ridewithgps.com/routes/27234843 where you can download it as a GPX. Or for a bike computer without full navigation, then you’ll probably be better off with the TCX with custom cue sheet from https://www.dropbox.com/s/capexqbldkfleln/Alton_0418.tcx?dl=0
See you at the bridge!