Circular route on footpaths, tracks, towpaths and some roads. Start time are 04.00 for slower walkers, 06:00 for strong walkers/joggers, up to 07.00 for runners in 5 minute blocks and the 8-stage relay mass start at 08.00
You can use the interactive controls to zoom in and out and to move around the map, or click on a marker for more info. (interactive map help)