The islands are separated by three miles of blue sea.
They live on an island separated from the main continent.
The island is separated from the mainland by a narrow sound.
The islands are separated by a channel about 200 m wide.
The island is separated from the mainland by a 5-km-wide strait.
The two islands are separated by a channel which is only 30 to 50 meters wide.
The story is set on an island separated from the rest of the world, on which evolution has taken a different course.
The island is separated from the mainland by the Aldersundet.
We are clearly on another island, separated from ours by this side channel of the river.
It is an island separated from the mainland by just five kilometres of water.