Organisers of the biennial EP Children and Baby Expo are hoping to match funds raised at the last event for charity Little Bags of Hope.
Charity head and event organiser Catherine Higgins said the expo had been 12 months in the making.
"It's a major fundraising event for Little Bags of Hope," she said.
At the last expo in 2017 more than $6,500 was raised for the charity that provides backpacks of supplies for children entering the foster care system, kinship care and residential care facilities on the Eyre Peninsula.
"The expo covers pregnancy, babies and children...it's happening at Navigator College and we've got 45 cross exhibits and food stalls," said Ms Higgins.
The expo will be held in the stadium and out on the oval, and the Early Learning Centre will be open for nappy changing facilities.
She said it was an event that mothers and families could bring the children along to as well, and was pram and breast-feeding friendly.
"We're really encouraging people not just to come down by themselves," she said, explaining that many stalls were prepared for interaction with children.
There will be free activities as well as activities for a gold coin.
Some things planned include a jumping castle, kindergym, Wild on Eyre animals, balloon creations, a Bunnings stall for kids, as well as information and market and food stalls for parents and families.
Ms Higgins said there would be a raffle with a major prize and that the first 100 families to enter the expo would receive a "goody bag" worth more than $200.
Organiser Latisha Proude said the expo was good value.
"It's a budget-friendly day out," she said.
She said every child was different and this was the chance if you wanted to find out about services that could help, including some new services that people may not know of.
She said there would even be services available that are suitable for children up to 16 years of age.
Ms Higgins said as much as it was a fundraiser for the charity, it was also about bringing all those services into the one spot.
She said there would even be services helping to deal with miscarriages.
The event will be held on Sunday November 10 at Navigator College from 10am to 3pm, with a gold coin donation entry.
Ms Higgins also thanked sponsors Beyond Bank, Navigator College, Bright Star Kids, Centacare, Bump to Bambino, City Motors, Park Terrace Dental, Solfit Yoga and Barre, Tobruk Centre and Xtreme Kites and Paddle for helping make the event possible.