The Robertson Show set to go ahead this weekend [Saturday, October 15 and Sunday, October 16] has been cancelled.
Robertson Show Society president Leesa Stratford blamed waterlogged grounds and safety concerns for the committee's decision to cancel this year's popular event.
"The Robertson Show committee is beyond disappointed," Ms Stratford said.
"[The] completely waterlogged grounds pose a safety risk for our competitors and visitors."
Ms Stratford said all events were cancelled until further notice.
"I am only allowing campers in that have already booked," she said.
"I can place them on dry gravel sites, otherwise everything is closed."
The committee had been excited to give the community its first look at improvements to the showgrounds' facilities.
"We are keeping our fingers crossed La Nina peters out and in March next year we can finally show all the exciting improvements we've been making," Ms Stratford said.