Eight extremely fit Kangaroo Island runners made he trek to Flinders Ranges earlier this month to run an ultramarathon.
Hubert 100 ultraMarathon trailrun takes its name from South Australian 20th century explorer, Sir Hubert Wilkins, who is famous for quoting "adventure is just a word used to disguise a series of unplanned surprises".
Most of the KI runnners just the week before competed in this year's Kangaroo Island Marathon.
Among them were Maren Norris, who along with Sherilee Binsted, has now completed every 42km KI marathon race.
She said it was fantastic to have such a healthy running community on Kangaroo Island, and who travelled up to the 50km Hubert 100 trailrun.
"It was incredible to have such a large island presence at a race far from home!" Maren said.
There were seven women, Maren Norris, Sue Pearson, Sherilee Binsted, Wibke Tiemann, Andrea Buick, Jodie Trethewey and Sandy Hammat Coppins competing and one man, Shaun Koopman.
The finish line and race headquarters was at Wilpena Pound.
"We were bussed to the start of the race at Trezona Campground in Brachina Gorge and ran, walked, hiked, scrambled and climbed 52ks back towards Wilpena Pound," she said.
"The race was on many different surfaces - some dirt roads, trails, dry creek beds, hiking trails, fire access roads.
"The final 12 kilometers was up and over St Mary's Peak (1171m), which involves quite steep hiking over rocks and boulders. The decent was 4 kilometres of technical running down a trail covered in loose rocks and gravel."
Shaun came second in the men's race - putting in a phenomenal and fast performance, Maren said.
All seven ladies finished ranging in time from 9hr21min to 10hrs42min. Four of the seven completed their first ultramarathon.