Hundreds of children are giving it a go at the Sanitarium Weet-Bix Kids TRYathlon in Mount Maunganui this morning.

About 700 youngsters, aged seven to 15, have set off along Pilot Bay as part of this weekend's inaugural Mount festival of Multisport.

Seven-year-olds participate in a 50m swim, 4km cycle and 1.5km run; those eight-10 do a 100m swim, 4km cycle and 1.5km run; and 11-15-year-olds complete a 200m swim, 8km cycle and 1.5 km run, with TRYathlon ambassadors Ella Williams, Alison Shanks and Cameron Brown cheering every child across the finish line.

SunLive photographer Cameron Avery is there capturing some of the action.