The business chose to donate every cent from Friday's takings, and to spread it across the Gippsland Emergency Relief Fund, Wildlife Victoria, the CFA and the Red Cross.
And as huge numbers flooded through the gates of the water park the tally kept rising, with patrons more than happy to donate what they could.
And in the end, $5118 was raised.
Waterfront Moama and Aqua Island’s marketing manager Zac Curtis said Aqua Island was blown away by the support it received.
“Every cent people are able to give is really important, it allows a real difference to be made,” he said.
“We are incredibly proud of what we were able to do just by opening up the park. It allowed us to do something pretty special.”
The park saw more than 200 patrons throughout the day, and Mr Curtis said the environment was perfect for the day.
“We talked before the event about making it a really positive experience,” he said.
“It's been a rough few weeks and months, it's a national tragedy that has affected everyone, so we wanted to create an opportunity where people could come in and enjoy themselves, have a bit of fun and do something for a great cause at the same time.
“Everyone who came to the park loved the day, you saw a lot of people sitting around and talking, having fun together on the park itself and just enjoying the day, and that was really what we wanted.”