The large crowd was entertained throughout the day by several performers on the main stage, as well as a variety of market stalls, bouncy castles, face painting and plenty of food options.
Festival of the Plain chairman Ian Chalmers said the event was started by a group of people who wanted to promote Mosgiel and put on something for children to enjoy.
It began about 20 years ago, and also served as a fundraiser to buy new equipment for the park.
"It’s sort of grown over the years," he said.
The move back to Memorial Park was down to it being more "user-friendly" and having more of an atmosphere, he said.
"They’re much happier here, I think."
He was chuffed with yesterday’s weather — but then, he pointed out, "it’s always nice weather in Mosgiel".
