You’ve heard of the Big Banana and the Big Pineapple, but have you heard of the big penis?

Well, now you have. However, it’s too late to seek out this hidden landmark now, according to travel blog We Are Explorers.

The content creators informed their Instagram followers that “the famous Blue Mountains Penis Cairn” has been “vandalised”.

And by “vandalised”, they mean turned into a pair of boobs.

“The attack, which we can only assume was carried out by a radical and highly organised group of hikey feminists, has rendered the Penis Cairn in the Blue Mountains no more. It’s now a giant pair of tits,” We Are Explorers said in an Instagram post.

They said Instagram user @travelling.hungry.mal sent them an image of the famous dong transformed into “a pair of ridiculously round boobies”.

“It can’t have been that long since the attack either, as the penis cairn’s outline is still visible,” they reported.

The post included a note discouraging people from moving rocks in the bush as “Lil lizards and spiders and snarks and grumkins use them as habitat”.

“Do your best not to build any phallic symbols, monolithic, two-dimensional or otherwise.”

On their blog, We Are Explorers said the unusual cairn was discovered last year by 53-year-old Michael Connolly while he was researching bushwalking trails.

“One day, I was researching trails to walk using the high definition mapping site, Six Maps, and was zooming in on ridgelines to see where tracks lead. That’s when I spotted it – it stuck out like the proverbial!” Connolly said.

“It’s about a 2.5-kilometre walk from where the national park gate is, and there are no discernible tracks to get to it. I had to find it by topo map/dead reckoning.

“There had also been a hazard reduction burn a few months earlier, so the area was still very blackened when I went, which resulted in me getting covered in soot.”

However, covering the same cairn, AWOL reported that it doubts Connolly “discovered” the formation and probably set it up himself.

Featured image source: Instagram/we_are_explorers