Despite the wet and cold weather, the hardy competitors – aged from eight to 17 – put their sporting limits to the test at the Craigavon Lakes event.
The triathlon started with a swim, followed by a bike race and ended with a run, with five age categories.
The event was marshalled and coordinated by Down Triathlon Club with additional support from surrounding clubs and community groups.
Photographer Tony Hendron was there to snap some of those who braved the weather for the endurance event.
13. South Lake Junior Triathlon
Competitors in the 8-9 years section of the South Lake Junior Triathlon braving the cold water on Sunday morning. PT35-215. Photo: Tony Hendron
14. South Lake Junior Triathlon
Ready for the racing to begin at the South Lake Junior Triathlon are the Bird family including from left, dad Brian, Bailey, mum Juie-Ann and Lucas. PT35-209. Photo: Tony Hendron
15. South Lake Junior Triathlon
Making a splash as they prepare for the 8-9 year olds race at the South Lake Junior Triathlon on Sunday. PT35-212. Photo: Tony Hendron
16. South Lake Junior Triathlon
8-9 year old competitors getting acclimatised before their swimming section of the South Lake Junior Triathlon. PT35-213. Photo: Tony Hendron