Ireland is an island in the North Atlantic. It is separated from Great Britain to its east by the North Channel, the Irish Sea and St George’s Channel. Ireland is the second-largest island of the British Isles, the third-largest in Europe, and the twentieth-largest on Earth.
The island of Ireland is divided between the Republic of Ireland (officially named Ireland), which covers five-sixths of the island, and Northern Ireland, which is part of the United Kingdom, in the northeast of the island.
In 2018, the population of the island of Ireland was about 6.7 million, ranking it the second-most populous island in Europe after Great Britain. More than 4.8 million people live in the Republic of Ireland and just over 1.8 million live in Northern Ireland.
The island has relatively low-lying mountains surrounding a central plain, with several navigable rivers extending inland. The island has lush vegetation, a product of its mild but changeable climate which avoids extremes in temperature. The Irish climate is very moderate. As a result, winters are milder than expected for such a northerly area with infrequent frost and snow. Summers are cooler than those in Continental Europe with abundant rainfall and cloud cover.
Travelling to the U.K.
Travel between the Republic of Ireland and Northern Ireland is usually uncontrolled and it is frequently difficult to know where the border is. The Garda National Immigration Bureau (GNIB) and British immigration occasionally have checks on public transport crossing the border.
If you have applied for asylum in the Republic of Ireland you are not automatically entitled to travel to Northern Ireland. Ask for advice before attempting to cross the border.