Extreme Norths “Quadrathon” – four marathons in four days around Inishowen takes place in August.
The endurance test started four years ago and has established itself into an iconic event with visitors from around the world set to tackle the peninsula's 105 miles.
Runners and walkers will also have the choice to run selected marathons or a half marathon during the same weekend.
The Quadrathon, which takes place from Thursday 11th to Sunday the 25th August, is expecting another big jump in entries this year again.
Oisin Kelly was joined in studio this week by Race Co-Ordinator Harold McGuinness, who outlined what the event is all about…