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.