Junior surf lifesavers from up and down the coast will compete for glory at Raby Bay today.
It is the third race in the Kozii Iron Challenge Series, and life savers aged from the under nines to the under 17s will compete.
It will be the fourth time the kids have tested their board, swim and run abilities.
The three-race series was introduced this year. Athletes raced at Mooloolaba on September 21 and Tugun on November 23.
The round-robin format ensures there are no eliminations, with three tough races guaranteed for all competitors.
The first race is on at 8am. Presentations to the male and female age champions is scheduled for 12pm.
Organisers said the event prided itself on being environmentally friendly, leaving no carbon footprint.
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