"We kicked off the event last year with hundreds of families visiting us to enjoy free water based activities, and it was so popular we decided to host it again this year," he said.
"We have seen record high temperatures recorded in the first few weeks of 2015, so this event is timely as Gold Coasters continue to swelter through a very hot summer.
"It's a great day out and something different to the usual beach trip, with no cost involved to take part in the activities.
"This is a great opportunity for friends and family to get together and enjoy a day of fun and good company."
For further information on the family fun day, visit www.gainsboroughgreens.mirvac.com or call 07 5549 2322.