Five canal boat owners have been terrorised by an almost 20-strong gang of yobs who hurled stones and jumped between the barges.
The teens jumped up and down on the boats, hopping between the two watercrafts, as the worried owners tried desperately to escape.
The men and women, who asked not to be identified, were trying to navigate a lock on the Rochdale Canal in Failsworth, when the youths approached them, according to the Manchester Evening News .
The yobs began terrorising the boat owners, and the victims have shared video footage of the ordeal in the hope of catching those responsible.
Speaking of the incident, at 3pm on Monday, one member of the five-strong boat crew said: "For the women it was a very, very scary moment, it was nerve-racking for the guys as well.
The yobs throw stones at the boat owners
There were about 20 of them
The jumped up and down on the boat
"Myself and my wife had cycled ahead of the party to approach the lock for the boats to come down.
"When the two boats came down they started jumping onto the boats and rocking them.
"It was really dangerous, if they had got crushed between the boat and the wall they could have got seriously injured or killed.
"When the boats came down they put their hoods over their faces."
Another member of the crew said: "We live in those boats. It's our house. Imagine someone coming in and jumping on your house and in your garden.
"Nothing like this has ever happened to us before. But it's our first time on the Rochdale Canal – it has this terrible reputation.
"People don't like stopping on it. Just before that incident this group of girls were shouting at us further up the canal, and one started spitting in our direction."
The clambered between the boats
They tried to intimidate the men and women on board
The group of boys are described as being between the ages of 12 to 14, and were wearing hoodies and tracksuit bottoms.
No arrests have been made and police are appealing to anyone with more information to get in touch.
A Greater Manchester Police spokeswoman said: "We were called to reports a group of about 18 youths around 14-years-old were jumping on canal boats and throwing stones at the boats.
"No arrests have been made."
Anyone with further information can contact police on 101.