The Irish Sea is part of the North Atlantic Ocean and lies in-between Ireland and Great Britain. It is connected to the Celtic Sea in the south by the St. George’s Channel, and connected to the Inner Seas off the West Coast of Scotland via the North Channel. The Irish Sea has a surface area of around 46,000 km2. It contains several islands, the largest being the Anglesey and the Isle of Man. As such, the sea is sometimes called the Manx Sea. The sea is of economic importance due to regional trade through shipping, as well as fishing and power generation from wind turbines.