The Rotorua Aquatic Centre is abuzz with swimmers from all over New Zealand, many of whom are fighting for a spot at the National Swimming Championships next month.
The annual National Division 2 Championships started todayand runs through to Wednesday night.
Swimming New Zealand database administrator Amber Piggott said it was an age group event which had attracted 577 swimmers from 96 clubs.
"We have our national age group championships in April and this is for those who are just not quite there yet in terms of qualification. Quite often it's their last opportunity to qualify for that event.
"The quality of swimming here is really good, we've had lots of personal best times already and not many disqualified," Piggott said.