Marathon 1 and Marathon 2 are mostly on trails and dirt roads.
Marathon 3 / Cairns Marathon is mostly on footpaths.
Register between Thursday, 2 October 2023 and 11.59pm, Sunday 23 June 2024.
Grand Slam Marathon 1
Last updated on 17 June 2024. AllTrails map.
Grand Slam Marathon 2
Last updated on 17 June 2024. AllTrails map.
Grand Slam Marathon 3 and Cairns Marathon
Last updated on 17 June 2024. This route is confirmed.