Wikipedia EN Deben
The River Deben is a river in Suffolk, England. It rises to the west of Debenham in central Suffolk, though a second, higher source runs south from the parish of Bedingfield. The river passes through the port town of Woodbridge, turning into a tidal estuary before entering the North Sea at Felixstowe Ferry. The mouth of the estuary is crossed by a ferry connecting Felixstowe and Bawdsey.
Source: Wikipedia https://en.wikipedia.org/wiki/River_Deben