The Irish Sea, the North Channel and the Atlantic Ocean.
Ireland is an island, so the sea surrounds it, so it cannot be any closer to the sea. It is zero miles from the sea for example.
The sea that separates Ireland and Northern Ireland from Great Britain is called the Irish Sea. The area of sea immediately north of the Irish Sea is called the North Channel, and separates Northern Ireland from Scotland.
The Irish Sea
It doesnt surround it its on the Eastern side...the Irish sea.
The Irish Sea touches both places, so neither is closer than the other.
Bangor
Scotland and Wales, then across the Irish Sea the Republic of Ireland and Northern Ireland.
The North Channel.
The Irish Sea or Traditional Name - Celtic Sea
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there is no sea that surrounds Illinois.
The Irish Sea lies between Britain and Ireland. However, Northern Ireland is part of the United Kingdom, therefore the UK shares a border with the Republic of Ireland and is not separated by the sea.