Marathon 1 and Marathon 2 are mostly on trails and dirt roads.
The course of Marathon 3 / Cairns Marathon is yet to be confirmed.
Grand Slam Marathon 1
Last updated on 24 November 2024. AllTrails map.
Grand Slam Marathon 2
Last updated on 24 November 2025.
Course description is yet to be completed.
Grand Slam Marathon 3 and Cairns Marathon
Last updated on 24 November 2024. This route is yet to be confirmed.