JOE Hawkes woke on Sunday morning to find his 20-foot motor launch smashed up.
He said he was "disgusted" by the low act.
On Saturday night Mr Hawkes' neighbour had a party which was attended by gatecrashers.
Mr Hawkes said he believed the uninvited guests were responsible for the smashed windscreen panels, steering wheel and a compass of the old fibreglass motor launch.
The unprovoked attack has left the 65-year-old Paulma Rd property owner scratching his head and asking "why?"
Mr Hawkes says he doesn't have the money to repair the boat. He bought it as a project but it has never seen the water since he has owned it.
"I have got the engine over at the shed there to do up and a prop shaft is being made. It was almost ready to put back on the water and ready to use and now it has a lot more to do to it.
"I am not in a position physically or financially to do it at the moment."
Five years ago Mr Hawkes underwent a quadruple bypass, he has type two diabetes and suffers from severe emphysema.
Born in Proserpine, Mr Hawkes and his father Graham founded Hawkes' Boatyard which is now in the Abell Point Marina complex.
Buying the first block ever sold on Paluma Rd in 1980, Mr Hawkes had plans for a coconut plantation but this idea never became a reality.
Mr Hawkes said he had no idea why anyone would vandalise his boat.
"I am just disgusted that anyone would do it. They ripped the steering wheel off, smashed the compass and ripped the awning covers off.''
Proserpine police were called on Sunday and are investigating the wilful damage of Mr Hawkes' vessel.
Whitsunday Police said investigations were continuing but no suspects had been identified at this stage.
Anyone with information about the act of vandalism on Paluma Rd on Saturday night is asked to contact police on 4948 8888.
A reward is offered for information leading to the arrest of the people responsible for the damage.
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