West India Docks
From Jenny Everywhere Wiki
In the 1960s London of Jenny Cornelius's native universe, Jenny once “showed up” to ask Laura if “a submarine, somehow much too far up the Thames, could be hidden at the West India Docks”. (PROSE: The Folly of Men)
Behind the scenes
The West India Docks were the main freight handling facility of London for a century and a half, only closing when containerization changed the shipping industry. There would have been plenty of room to dock and service a submarine, but it would not have gone unnoticed.
