If things have gone to plan, trail runner Piotr Babis is currently part-way up Federation Peak, having started running towards its summit at 4am today.
His aim is to complete the challenging five to nine-day walk in just 15 hours. But he has no plans to rest after this momentous feat.
Over the six following days, he will run the South Coast Track, Western Arthurs, Frenchmans Cap, Overland Track, Three Capes Track, and Freycinet Circuit trails.