A shipping container will be used as a makeshift cell by Northland police planning a blitz on New Year's Eve troublemakers.

The district's top officer, Superintendent Russell Le Prou, and Whangarei and Kaipara area commander Inspector Paul Dimery will be on duty with hundreds of emergency service workers.

Mr Dimery said his officers would patrol traditional hotspots, including beaches at Oakura, Whananaki, Ngunguru, Tutukaka, Matapouri, Whangarei Heads, Ruakaka and Waipu.

A shipping container converted into a no-frills lock-up will be ready for any who cross the line.