The event started at the club rooms in Ballyoran Park with various races and walks for each age group including 1K run, 3K run, 5K run / walk and the top level 10K run.
Around 200 participants took part in the inaugural event which club officials hope will become an annual event.
Photographer Tony Hendron dropped by to snap the morning’s events.
13. Keen to get going
Taking part in the Tir Na nÓg inaugural fun run. PT10-228. Photo: TONY HENDRON
14. And they're off ...
The 10K runners get going on Sunday morning. PT10-231. Photo: TONY HENDRON
15. Smiles all round
Pictured at the Tir Na nÓg inaugural fun run in aid of the underage development fund are from left, Orla Murphy, Ellen McCann, Seanna Magill and Kathryn Brown. PT10-230. Photo: TONY HENDRON
16. Taking time for a photo
Members of the ladies U15 squad pictured before the Tir Na nÓg inaugural fun run on Sunday morning. PT10-229. Photo: TONY HENDRON