Mick Fanning says he saw another fin on his comeback to the water

Australian surfer Mick Fanning. Photo / Getty Images

Mick Fanning was chased from the water by a shark on his first surf since last week's horrifying clash with a Great White in South Africa.

Fanning's courageous return to the water was captured by a 60 Minutes crew at Hastings Point in northeast NSW on Saturday.

Terrifying footage from a promotion for the program shows a panicked Fanning clambering onto a jet ski after spotting a large shark.

Once out of harm's way, an alarmed Fanning tells reporter Peter Stefanovic he has just spotted a shark.

"There he is, straight out there - I just saw it," Fanning says, visibly in shock.

On the same day Fanning returned to the waves, reports surfaced of a large shark threatening surfers at Snapper Rocks, Fanning's local beach.

Ballina beaches were also closed this week after four large sharks were spotted off the coast.

Fanning has announced he will resume competition at the next World Surf League event, the Billabong Pro in Tahiti, next month.

His return to the ocean comes after the three-time world champion touched down in Australia last Tuesday, where he was greeted by loved ones and held a press conference.

Fanning had earlier detailed the terrifying moment he managed to fight off the shark when speaking to reporters in Sydney.

"I thought, 'If this thing is going to come for me, I want to have a look at it'," he said at a press conference.

"So I turned around and I was floating on my back, I had my fist cocked ready to see what was going to go and luckily it didn't come and by that stage the boats and the jet skis were on top of us and I'm here to tell the story."

Fanning said it was a "miracle" he'd escaped from a shark attack without a single scratch.