Visitors to the Great Ocean Road have been warned to stay behind barriers.
A Port Campbell police spokesman said people were often witnessed going to dangerous areas in a bid to take a photograph of the stunning coast line.
"People need to be mindful that the cliffs are unstable and they can slip at anytime," the spokesman said.
Parks Victoria district manager Dale Antonysen said fences and barriers were at sites like the Twelve Apostles for a reason - to keep people safe and to protect our environment.
"Climbing barriers to get a perfect selfie or to look for a better view is really dangerous and can lead to serious injury," Mr Antonysen said.
"We urge everyone to be responsible for your own safety and the safety of those in your care.
"We unfortunately see some people ignoring safety signage and barriers, and climbing onto fragile terrain at the Twelve Apostles precinct. This often appears to be for the purpose of taking a photo."
Anyone who is caught ignoring warning signs can be fined $363.
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