Video - An engineering student has invented a new way of powering a traditional river punt - by pedal power

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Barnaby Walker, 22, took up the challenge from his supervisor after trying to find new ways of powering a punt and came up with the ‘puntcycle’.

The Cambridge University student converted an unloved old punt into a sleek, two-wheeled speed machine - capable of leaving all other river-users in his wake. He decided to breathe new life into French Hen, a punt which was a year older than himself, and rescued it after being beached for three years. Traditionally punts - long narrow boats with flat fronts and sterns - are powered by a pole which is pushed onto the river bed.