The Warnbro Bowling Club has shared CCTV of the moment two thieves enter their premises and steal cash.
It's understood the offenders broke in through a fence and roller door before rummaging through the office area around 5am on Tuesday.
They got away with about $300.
The pair were both wearing black hoodies and black bands around one of their lower legs.
The offenders were also armed with a crow bar.
The incident has been reported to police.
Anyone who can identify the duo is asked to contact Crime Stoppers on 1800 333 000.
Detectives investigate Rockingham aggravated robbery
Bunbury businesses destroyed in suspected tobacco war firebombing
Man charged after Rockingham Shopping Centre incident
Concerns for missing West Pinjarra teen
Scorching Christmas temperatures for Perth, Rockingham, Mandurah
Teen charged over Baldivis arson attack
Concerns for missing boy last seen in Warnbro
Baldivis Sports Complex officially complete with unveiling of final stage
Teen dies at Logue Brook Dam