Local ducks down at Hamurana Springs will have their water invaded on Sunday - but it will all be for a good cause.
The Westpac BayTrust Rescue Helicopter Duck Race and Fun Day will see 1200 rubber ducks dropped into the water as part of the annual fundraiser.
Westpac Rotorua Central bank manager Ian Baker said more than 700 rubber ducks had been sold since the beginning of May, and there would be at least a couple hundred available on the day.
The Fun Day will also include a sausage sizzle, a raffle and a "guess the number of Jaffas" competition.
Motion Entertainment will also be running some activities.