A man's body has been recovered from Logue Brook Dam, near Harvey.
It is understood the man, aged in his 30s, was on a sea biscuit being towed behind a boat on Saturday afternoon when he fell off and disappeared beneath the surface.
Police and the RAC rescue helicopter were called to help find the man, but the search was suspended overnight.
The man's body was found on Sunday afternoon with the help of police divers.
A report will be prepared for the Coroner.
Community invited to name crane towers building new Mandurah Hospital
Hundreds of volunteers remove 525kgs of rubbish from Mandurah's waterways
Port Kennedy man fined $4.2k for failing to feed horse
Rockingham General Hospital patients face the longest waits for elective surgery
Australian-first drone technology to monitor emergencies, crimes in Baldivis, Kwinana, Rockingham
Teen accused of ordering firebomb attack on Baldivis tobacco shop
City of Mandurah sees sharp rise in animal cruelty reports
Geoff Valentine returns to Peel Thunder as senior coach
Golden Bay woman charged with lacing colleague's curry lunch with snail poison