The Irish Sea separates the islands of Ireland and Great Britain; linked to the Celtic Sea in the south by St George's Channel, and to the Inner Seas off the West Coast of Scotland in the north by the Straits of Moyle. Anglesey, Wales, is the largest island in the Irish Sea. The second in size is the Isle of Man and the sea may occasionally, but rarely, be referred to as the Manx Sea.The Irish Sea is of significant economic importance to regional trade, shipping and transport, fishing, and power generation in the form of wind power and nuclear power plants. Annual traffic between Great Britain and Ireland amounts to over 12 million passengers and 17 million tonnes of traded goods.