What English town is 5 miles from a port lying on a river named for oak trees?
River Derwent, Cumbria: The Derwent is a river in the county of Cumbria in the north of England; it rises in the Lake District and flows northwards through two of its principal lakes, before turning sharply westward to enter the Irish Sea at Workington The name "Derwent" is shared with three other English rivers and is thought to be derived from a Celtic word for "oak trees" ( an alternative is dour water and (g)-went white / pure ). Workington: Workington is a town, civil parish and port at the mouth of the River Derwent on the west coast of Cumbria, England. Workington:  Historically in Cumberland and lying in the Borough of Allerdale, Workington is 32 mi southwest of Carlisle, 7 mi west of Cockermouth, and 5 mi southwest of Maryport.
Maryport