Officials have served 1,708 boat owners with notices for not paying the necessary fees in 2024 - about 14pc of the 12,000 vessels that use the waterways each year.

The Broads Authority says this can push costs up for other users, who have faced a 30pc increase in tolls in three years.

The Broads Authority yard on the River Yare in Postwick (Image: Denise Bradley)

Bill Housden, a senior officer responsible for collecting the fees, said up until a few years ago he would only issue about 400 notices a year.

"It has spiralled in recent........

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