All courses start and end in the Pavilion (near the edge of the river).
The 100km only will enjoy a very challenging extra section (shown with blue lines on the Course Map.
All others will take a right (staying with the red line on the Course Map) instead of going straight onto the blue line).
This course generally goes either up or down. Not a lot of flat. The climbs result in absolutely beautiful vistas.
There is also a lot of scree, which makes things even more exciting!
There are river crossings. But most years it is possible to keep your feet dry if you balance across the stones and bridges. No promises though!