'When they're two thirds the size of your boat - it's time to get out of there': Four massive sharks are filmed circling a fisherman's inflatable dinghy
- Fisherman was circled by four massive sharks while fishing in an blow-up boat
- Rohan Lewis was fishing off the coast of Rottnest Island on Wednesday morning
- Mr Lewis, who has been fishing there for 30-years, warned others after sighting
- Video shows the four sharks about four-metres in length circle the boat
A man was forced to abort his fishing trip when his boat was circled by four massive sharks.
Rohan Lewis was crayfishing at Geordie Bay, off the coast of Rottnest Island in Western Australia, on Wednesday morning when the four-metre friends joined him for a swim.
'Pulling the pots in Geordie this morning until it got a little crowded,' he wrote on Facebook.

Rohan Lewis was crayfishing at Geordie Bay, off the coast of Rottnest Island in Western Australia, on Wednesday morning when the four-metre friends joined him for a swim
'Three good size tigers circled us for a bit, then a bigger white came up.'
Video footage of the clear blue water captured by Mr Lewis shows the sharks lingering around the boat.
Mr Lewis, who has been fishing off the island for 30-years, urged those diving for crays to reconsider following the sighting.
'Four sharks that size - when they're two thirds the size of your boat and you're in a blow-up boat - it's time to get out of there,' he told Nine News.
But the fisherman's hasty escape was met with further fear as the sharks decided to stalk the boat.
'We threw the boat in gear to move away from them and we put the boat into a tight turn just to see where they were and they were definitely following us,' he said.


Mr Lewis, who has been fishing off the island for 30-years, urged those diving for crays to reconsider following the sighting
'I think if you'd been in the water this morning with four sharks around, one is curiousity but four's a pack.'
Mr Lewis said he believed the sharks were about four-metres in length.
The sighting caused a number of beaches along the island to be shut by lifesavers.
'Public report 4 x 4.0m tiger sharks sighted 09:30hrs 09/01, Geordie Bay, Rottnest Island 1500m offshore, 3 x tiger sharks and 1 x white which was larger they circled boat,' Surf Life Saving WA tweeted.

Mr Lewis said he believed the sharks were about four-metres in length