Runners and even a couple of dogs took part in the annual Crush the Cargill event at the weekend.
The run returned for its eighth year, attracting scores of Dunedin runners who soaked in the sun as they spent 24 hours running up and down Mt Cargill.
Organiser Steve Tripp said people could attack the race any way they liked.
"Most people, they'll have a goal, so they might think ‘I'll do five laps or six laps’.
"Some people will try and just keep going as much as they can without any breaks at all."
Along with the 24-hour run, there was also the Crush the Cargill 100-miler, an event added last year for runners with the aim to complete 19 laps up Mt Cargill within 36 hours, a distance of 100 miles, or 161km.
"They almost climb the equivalent of one and a-half Everests in that time. It's pretty brutal."
The running started and finished at Bethune’s Gully. The entry fee for the race was koha and all proceeds went towards The Valley Project.
"People are usually pretty generous, so it's great."
The Valley Project set up a breakfast yesterday for the competitors who had spent 24 hours running.