Distance running enthusiasts from far and wide flocked to the peninsula to take part in Extreme North's Quadrathon challenge.
The popular annual event, organised by Moville's Harold McGuinness, saw runners complete four marathons in four days - though there was a half marathon option for the faint-hearted!
The action began on Thursday in Malin, and first time competitors are said to have been blown away by the stunning scenery that lined their way throughout the course of the four days.
Gemma McClenaghan, who has helped out at the event over the last few years, said she was delighted with the feedback they have received.
She told us: "Anybody that did it was raving about it, and I think one of the things that makes it such a great experience is that participants get to run four completely different routes in four days.
"The atmosphere on the last day was really special. The runners were coming through Muff and the crowds were gathering, and there was a great sense of fun."
Having started up in 2012, numbers taking part have grown from year to year, and Gemma is hoping to see the event flourish even more in the next few years.
"Last year some just did the half marathons, but they came back to do the full ones this time," she said.
"A lot of people are coming back because they are made to feel so welcome in Inishowen and the event itself is so unique.
"They people who do it are a varied bunch, and they all range from 40s up to 70s. You have to hand it to them. I've been saying for ages that a marathon is on my bucket list - but I don't know if I could manage it!"
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