
Euron Greyjoy's armada owns
the Narrow Sea.
Game of Thrones Season 7, Episode 3

and the Dothraki horde
crosses the Narrow Sea...
Game of Thrones Season 1, Episode 5

Might book passage across the Narrow Sea.
Game of Thrones Season 4, Episode 3

Too NARROW.
Game of Thrones Season 2, Episode 5

My armada owns the Narrow Sea.
Game of Thrones Season 7, Episode 3