"It's also keeping the pool and it's customers hygienically safe."
This is part of an effort to build children's water intuition around the country with initiatives such as baby swim scholarships and an online video featuring Michael Phelps and his baby son Boomer getting water-ready.
Nationally five water parks have received swim nappies to give away.
In a survey commissioned by Huggies Little Swimmers Swimpants, who team up with Plunket, Water Safety New Zealand, Parents Centre New Zealand and swim schools every summer to support water safety for children, it has been found that 45% of Kiwi adults recall a frightening water experience from their childhood.
Those parents who had a water scare as a child were shown in the survey to have heightened awareness of the need for children to have positive water experiences and lessons at a young age.
Of those who recalled a frightening water experience 84% believed it was 'very important for children to learn instinctive survival skills e.g. not to panic' for their life-long benefit, compared with 71% of those not recalling such an experience.
Water Safety New Zealand chief executive Jonty Mills said parents were right to want their babies to have positive water experiences at a young age.
"We are surrounded by water here in New Zealand and support the work being done to help make lessons more accessible.
"The most important water safety message when it comes to under-fives is constant supervision.
"They should always be within your line of sight and within arms' length for toddlers when in or around water. It takes less than a minute for a child to drown."
YMCA Swim School quality services manager Karla McCaughan said she supported the campaign because it made a difference to people's lives.
"If we can educate adults about the need for constant and vigilant supervision of their children and show them exactly what that looks like, and equally if we can teach children to stop and wait until an adult is with them every time they come to an invisible line at the edge of a water zone, we will start to see generational change."