Two masked men armed with a machete robbed Royal Palms bar on Seven Mile Beach in the early hours of Friday morning.
Police said a 36-year-old male bar tender was cashing up at the beachside bar shortly before 1.25am on 1 July when he was jumped by the two masked men.
One of the suspects waved a machete at the bar tender and the second masked man struck him on the back of the head with an unknown weapon.
The robbers made off with an undisclosed sum of money.
Police said the suspects are described as being 5 feet 10 inches and 5 feet 5 inches tall. Both were wearing white T-shirts and dark coloured short pants. Their faces were covered.
Anyone with information is asked to call George Town CID on 949-4222 or the confidential Crime Stoppers number on 800-8477 (TIPS).