Rachel Campbell and her friends filmed an amazing scene with more than 100 tiger sharks furiously feeding over the carcass of a dead whale on the beach near Warroora Station in northwestern Australia.
Then the surfers wandered a kilometre or so up the beach and went for a surf anyway.
Writing on her blog Rachel Campbell said: “I was collecting shells along the beach with my mum. Searching the white sand while crystal water lapped at my ankles.
“I was shocked to find my worst nightmare dominating the shoreline a mere 400 m ahead.
“Picture about thirty sharks, most of which seemed to be tiger sharks, all destroying a whale laying only a few feet from the shore.”
“The nightmare part was the mass of sharks devouring the one victim.
“Before long I realized there were about 100 sharks in total, some as long as, all in a frenzy over fresh whale flesh.
“I have to say that I felt pretty massive playing chicken with waves barely the height of my ankle. You only had to get knee deep and suddenly you’re sharing the same square meter of Indian Ocean with a tiger shark.
“I am well aware of those beasts outside my control. I will still surf here though, because it’s not about merely surviving this ocean, it’s about living and breathing everything that this crazy place has to offer.
“Let’s just hope those sharks are full for now.”