Vandals nearly scuppered a treat for 60 Wanganui schoolchildren and their parents on Saturday.
A trip on the Whanganui River aboard the Adventurer II was their reward for participating in an art competition organised by the Puriri Neighbourhood Police Team as part of their Safe As Houses programme.
But when boat owner Robert "Baldy" Baldwin arrived at the City Marina on Saturday, he found the oil had been drained from the gearbox.
Fortunately, Mr Baldwin was able to remedy the situation and the riverboat cruise went ahead, but it is only the latest in a series of attacks on the boat.
Mr Baldwin said that "young people" who vandalised his boat must think he's rich.