Strait of Dover

The Strait of Dover or Dover Strait is a strait located at the narrowest part of the English Channel which separates Britain from continental Europe.

Toaru Majutsu no Index SS: Necessarius Special Admission Test
After stealing the Necronomicon from the British Library, Arlands Darkstreet of the magic cabal Dusk Waiting to Awaken performed a ceremony on an ocean salvaging terminal in the strait to summon the sunken city R'lyeh.

World War III
The Strait of Dover was the site of a battle between English forces and invading French forces. The waters of the strait were frozen by the invaders, impeding their enemy's naval capabilities.