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.
5. South Lake Junior Triathlon
The Mallon family pictured at the South Lake Junior Triathlon on Sunday. Included are, dad Stephen, mum Laura and children, Stefan (6), Jessica (9) and Sophie (12). PT35-202. Photo: Tony Hendron
6. South Lake Junior Triathlon
Some of the older competitors taking part in the South Lake Junior Triathlon on Sunday. PT35-207. Photo: Tony Hendron
7. South Lake Junior Triathlon
Braving the bad weather at the South Lake Junior Triathlon on Sunday. PT35-204. Photo: Tony Hendron
8. South Lake Junior Triathlon
Posing happily at the South Lake Junior Triathlon are from left, Gillian Dougan, Alex Pinkerton (5), Lucas Pinkerton (6) and Colin Pinkerton. PT35-205. Photo: Tony Hendron