We will be meeting at the West End YMCA for 7:50am to leave at 8am. The route is http://www.gmap-pedometer.com/?r=6718109. The loop to high park, down to the lakeshore and back to the YMCA is approx 14k, so do an out and back along the humber river as long as you need to, so for 24k, you would go 5k west along the MGT and north along the humber river from where you enter the MGT at Colborne Lodge.