Wedding Cake Rock Instagram craze: hashtag visitors on edge of danger

By Nick Galvin
Updated May 31 2015 - 4:08pm, first published 12:00am
No-one is quite sure when the Wedding Cake Rock craze first started, but in the past view months visitor numbers have swelled. Photo: Supplied
No-one is quite sure when the Wedding Cake Rock craze first started, but in the past view months visitor numbers have swelled. Photo: Supplied
This weekend NPWS erected temporary fencing around the site in response to the increased sightseer traffic. Photo: Supplied
This weekend NPWS erected temporary fencing around the site in response to the increased sightseer traffic. Photo: Supplied
As more people have visited the site, a trend has emerged of leaving messages on the rock in coloured chalk. Photo: Supplied
As more people have visited the site, a trend has emerged of leaving messages on the rock in coloured chalk. Photo: Supplied
The increase in traffic seems likely to have been driven by photos posted on social media. Photo: Supplied
The increase in traffic seems likely to have been driven by photos posted on social media. Photo: Supplied
In the past Wedding Cake Rock was generally the sole domain of just a few hardy walking types and trail runners. Photo: Supplied
In the past Wedding Cake Rock was generally the sole domain of just a few hardy walking types and trail runners. Photo: Supplied
Wedding Cake Rock AKA Cheese Block, due to its pale yellow colour and shape.  Photo: Instagram
Wedding Cake Rock AKA Cheese Block, due to its pale yellow colour and shape. Photo: Instagram
Three women pose for a group selfie in front of Wedding Cake Rock in Bundeena. Photo: David McRae
Three women pose for a group selfie in front of Wedding Cake Rock in Bundeena. Photo: David McRae
Visitors have been making their mark by chalking names on the rock in bright colours. Photo: Nick Galvin
Visitors have been making their mark by chalking names on the rock in bright colours. Photo: Nick Galvin
If performing a handstand on Wedding Cake Rock in Royal National Park looks dangerous, that's because it is. Photo: Instagram
If performing a handstand on Wedding Cake Rock in Royal National Park looks dangerous, that's because it is. Photo: Instagram

Search #weddingcakerock on Instagram and you'll come up with more than 3500 images of grinning young people on and around a curiously geometric, starkly white clifftop overlooking the ocean.