A large shark has been spotted jumping three metres out of the water off Dawesville.
A member of the public spotted the 4m Great White shark about 100m off Florida Bay Beach around 6.42pm on Monday.
Beachgoers are advised to be extra cautious when entering the water.
If you see a shark, report it to Water Police on 9442 8600.
Public report 4.0m white shark sighted 18:42hrs 19/11 Florida ,Bay Beach, Mandurah, Cont— Surf Life Saving WA (@SLSWA) November 19, 2018
Cont - shark sighted 100m offshore , Shark jumped 3M out of water, behind second reef Florida ,Bay Beach, Mandurah.— Surf Life Saving WA (@SLSWA) November 19, 2018