That is a lake, or a sea.
An island is a body of land completely surrounded by water.
An island. Or if your really picky, a floating rock.
A body of water almost completely surrounded by water is called an ocean. Oceans will often run into each other.
A lake.
A lake?
This could be a number of things. A pond, a lake, an inland sea, etc.
Land surrounded by water is an island . You are describing a peninsula.
No, a lake is a body of water surrounded by land.
a fresh water pond
An area of land almost completely surrounded by water is called a peninsula. A peninsula is a narrow strip of land that extends out into a body of water and is connected to the mainland on one side.
A lake is a body of standing water completely surrounded by land.
It's an island! :D