West Invercargill Health practice manager Joseph Davidson said the organisation had brought together a few different providers to help on the day, including National Bowel Screening Programme staff.
"There will be guest speakers talking about bowel health and sharing [stories] about their own physical as well as mental health experiences," Mr Davidson said.
Health NZ southern bowel screening programme manager Emma Bell said the bowel screening programme in the southern region had some of the highest participation rates in New Zealand among all demographics.
"The target is 60% and we're certainly above that overall and for Māori.
"At one point, we had the highest participation in bowel screening rates among indigenous populations anywhere in the world, which was something we're immensely proud of.
"That's been supported by the work of the community providers who have been helping us a lot with the promotion of this," she said.
West Invercargill Health welcomes everyone to "Free Bowel Health Day" at 64 Arena Ave, Avenal, on October 19, from 10am to 2pm.
The Free Bowel Health Day organisers want the whole of the Southland community to level up on their health literacy and attend the event as a whanau-friendly day out.
Mr Davidson said it would be a safe space for whānau to get information, to ask questions and talk about their health concerns.
"That's what the whole idea of the day is for.
"And they'll be able to walk through our giant inflatable bowel."
There will also be food provided, as well as outdoor activities run in the carpark by Active Southland.
West Invercargill Health is running the event with the support of Awarua Whanau Services, Southern Power Wrestling, Rongoā Kākāriki Green Prescription, Adventure Southland, Southland Chamber of Commerce, Pacific Island Advisory Charitable Trust and National Bowel Screening Programme.