The United Kingdom – the union name for the countries of England, Scotland, Wales and Northern Ireland – is one of the most popular tourists destinations in the world, especially the capital of England, London and the capital of Scotland, Edinburgh.
Traveling through the UK – as it is abbreviated to – is fairly simple given the size of the four countries. Three – England, Scotland and Wales – are connected by land. It is possible to travel from the Northernmost point of the UK – John O’Groats in Scotland – to the Southernmost point – Land’s End in England – in a day. Only Northern Ireland is not on the same island as the other three countries in the Union, but is reachable by a short ferry trip, most commonly from Scotland.
As the countries are small and interlinked, UK travel is a surprisingly easy aspect of a vacation there. It is possible to fly domestically, and rail and motorway networks serve the UK well. However, rail travel is very expensive, as was recently evidenced by the first issuing of a return rail ticket costing over £1,000 (around $1,400). There are discounts available, however, especially for foreign visitors on short-term stays.
Flying by air is much simpler, however, and usually cheaper, too. The UK has several major airports, both international and domestic, and flights between the countries are inexpensive and regular. You do not need to show a passport to travel across the country borders, though some form of ID is recommended for air travel.