The Dothraki have never
crossed the NARROW sea.
Game of Thrones Season 1, Episode 4
I need to cross the Narrow Sea.
Game of Thrones Season 2, Episode 6
My armada owns the Narrow Sea.
Game of Thrones Season 7, Episode 3
We can still go across the Narrow Sea.
Game of Thrones Season 3, Episode 7
as long as they remain on the other side
of the Narrow Sea.
Game of Thrones Season 1, Episode 2