Mt Zero to Dunkeld forms the core of this event: a north-to-south traverse of the Grampians Peaks Trail through Gariwerd, within Grampians National Park. The Grampians Peaks Trail 100 Miler - 2026 Australian 100 Miler National Championship presents the character of a significant ultra challenge, with Halls Gap nearby and a course designed for extended trail running, open terrain, and a demanding pace.