The festival offered a chance to see whanau, Ms Haapu said, "you can come here and see whanau you haven't seen for a long time."
"It's just a celebration of being together, of whanaungatanga [relationships]," Ms Ropiha said. "It's a day for all races to come together."
Throughout the day performances on a main stage kept people entertained with a playlist including kapa haka groups, hip-hop, reggae and R&B star Che Fu, Latin Roots dancers, Scottish drummers Clan Celtica, and Pearls of Polynesia.
Teenagers Holden Tumarae, and Piata Harmer, both 17, and Honey McLean, 16 spent the day enjoying the rides, and kai on offer - with multi-cultural array of food from hangi to ethnic cuisine available.
Piata said the event was good as "you get to spend time with family".
Holden said it was important to remember the treaty signing, "I'm pretty thankful for what our people did back then".
Taradale's Diane Plant and her partner brought their grandchildren to the sports park to make the most of the "beautiful day".
Ms Plant said she thought it was important her grandsons, aged nine and seven, learnt about the Treaty of Waitangi as they had recently moved from Australia.
About 400 people also took part in sports events on the fields.