At 21.5 miles, the River Stour is the second longest river in Kent - only the mighty Medway is longer. At Canterbury, the Stour flows through the heart of the ancient city, giving a riverside view of centuries of history. Guided boat and punt trips leave from King's Bridge and Westgate Towers. Journey highlights include Greyfriars, where a chapel - the remains of England’s oldest Franciscan Friary - straddles the river and unique views of Canterbury Cathedral.