Campaigners pushing for a cleanup of Hatea River collected more than 170 signatures at the first "Take the Plunge" event on the Canopy Bridge on a balmy day.
The inaugural event at noon yesterday attracted 38 swimmers who took a plunge off the bridge, including Whangarei mayor Sheryl Mai, Councillor Tricia Cutforth and heavily-pregnant businesswoman Jessica White, who is three weeks away from giving birth.
The event, organised by TogetherTahi, wants people to reflect on the polluted state of the Hatea. Ms Mai was the first to take the plunge off the Canopy Bridge and stayed in the water for about 20 minutes before climbing on to a pontoon and hosing herself.
Whangarei Community Circus and Company of Giants provided games and circus activities for children, while the "Take the Plunge" event was happening.