Two large sharks have been spotted off separate Mandurah beaches.
The Surf Life Saving helicopter sighted the first shark about 250m offshore at Rocks Surf Break near Falcon around 9.45am on Wednesday.
It was believed to be a 3.5 metre tiger shark.
The helicopter then spotted the second shark, a three-metre bronze whaler, about 300m off Wedge Surf Break near Pyramids Beach in Dawesville about 9.50am.
Beachgoers are being advised to be extra cautious when in the water.

The sharks were spotted within minutes of each other. PIC: SharkSmart
SLS Westpac Heli report 3.0m bronze whaler shark sighted at 9:50hrs 10/04, MH216 Mandurah Wedge Surf Break BEN Sign, south of Mandurah. 300m offshore. Circling.
— Surf Life Saving WA (@SLSWA) April 10, 2024
SLS Westpac Heli report 3.5m tiger shark sighted at 09:45hrs 10/04, MH167 Rocks Surf Break BEN Sign, south of Mandurah. 250m offshore. Tracking South.
— Surf Life Saving WA (@SLSWA) April 10, 2024
Southern suburbs man claims $2.5 million Lotto win
Wanted man possibly in Mandurah or Rockingham areas
Big fines for three fisherman caught with too many mullet, undersized crabs
Brand new six-storey hospital to replace Peel Health Campus
Drug and Firearm Squad swarm Meadow Springs home
Wanted woman known to frequent Mandurah, Rockingham, West Pinjarra areas
Waikiki Beach Hotel to go ahead after liquor licence approved
Man found critically injured outside Baldivis pub
Dawesville man charged with 38 child sex offences