The Six Foot Track Marathon follows the exact same path as the walking track from The Explorer's Tree, Katoomba to Jenolan Caves. It is 45.0km. This is basically the same route as been followed since the days of the first european explorers to the area.

The course varies from narrow, rocky track near the start in Nellies Glen, to meadows, sandy gravel track, and dirt fire-trail road - of course with a number of hills (big and small) and rivers (big and small). Sean Greenhill wrote a Detailed Course Description in 2003 which was then further enhanced with additional pacing suggestions/times by Chris Johnson in 2008.