SYDNEY, July 31 (Xinhua) -- Despite a perimeter fence and a host of clifftop warning signs, social media obsessed visitors are ignoring all the dangers at Sydney's iconic Wedding Cake Rock, to risk their lives for the perfect "selfie".

The problem has become so bad at the Royal National Park attraction, that the New South Wales State Parks and Wildlife service (NPWS) have had to ask the police for assistance.

"It is extremely difficult to try to regulate this behavior when people are intent on ignoring the signage, avoiding detection and intentionally going over the fence," a NPWS spokesperson told local media on Tuesday.

"The warning signage at Wedding Cake Rock, and the need to climb a 1.6-meter-high fence, makes it impossible for people to be unaware of the extreme danger which is why (we are) appealing for those visitors to reconsider their choices when visiting this location."

"People are making a well-informed decision to put themselves at extreme risk when they ignore the barrier."

Although authorities in March introduced a 3,300 Australian dollar (2,450 U.S. dollar) fine for anyone seen crossing the fence line, the NPWS confirmed they have already handed out 13 infringements and issued well over "100 warnings".

The major concern for rangers at the park stem from a 2015 geotechnical report that stated the cliff could collapse at any moment.

As well as this, the site has also seen several incidents in past years with people coming too close to the edge.

In 2014 a French tourist fell to his death at the site and one year later two men had to be saved by a helicopter rescue team when they became stuck on the ledge of the cliff.