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A leaflet has become a laughing stock online - for its unfortunate phallic shape.

The Canal and River Trust in Berkhamsted, Hertfordshire, admitted they had been "a bit naive" after creating the amusingly-shaped map.

Showing the Grand Union Canal, as well as the town's train station and castle, the leaflet was mocked on social media for its shape.

One Facebook user said: "It looks like a willy tee hee!!"

A Twitter user added: "You've got to see this."

The map was produced as one of dozens created by the Canal and River Trust to promote waterways up and down the country.

Simon Salem, of the Trust, agreed with the analysis of social media users.

"This is one of about 100 maps we've been promoting, he told the BBC.

"It does look, as the poster on Facebook says, like a willy. We didn't notice it. Somebody should have seen it, I agree.

"You could accuse of us of being a bit naive but canals are long, straight things, and when you draw a map it tends to be that sort of shape."

He went on: "If it gets at least one more person down to the canal then it has worked."