But itappears the 3.5m shark is actually just the Taieri's newest tourist attraction.
Taieri fisherman Glen Patterson, 46, said he bought the 120kg latex shark from a mate in Southland, who had used it during filming for a Discovery Channel show.
"We decided to hang it up so the kids could stop and have a look at it and have a laugh," he said.
Glen Patterson shows off his great white shark prop, which has attracted plenty of attention at Taieri Mouth. Photo / Stephen Jaquiery
Some people had expressed concern about the shark being real, he said.
A Department of Conservation spokeswoman said it had followed up on a report about the shark, but it turned out to be "a very life-like model".