Practical, for the traveller
The UK is easy to enter and easy to cross. What follows is the working list of the things you should know before you leave — and before you board a Ferry UK crossing or a train.
Paperwork
Visitors from the European Union, the USA, Canada, Australia, New Zealand, Japan, South Korea and Singapore may enter the UK without a visa for stays of up to six months but must hold an ETA (Electronic Travel Authorisation) from 2024 onward. Bring a passport valid at least until the day you leave — there is no six-month buffer required. A UK driving licence is not needed for car hire; an international driving permit is only required for stays over twelve months.
Rail
Great Britain runs on one of the densest railway networks in Europe: almost every town over 10,000 residents has a station, and InterCity trains connect London to Edinburgh in 4h20, Manchester in 2h10, Cardiff in 1h50. Tickets bought through the National Rail website cost the same as at the station and are typically cheapest 12 weeks in advance. Rail is the standard way to reach a Ferry UK port: Dover Priory, Portsmouth Harbour, Holyhead and Cairnryan stations sit at the terminal buildings themselves.
Weather & season
April to early October is the travel season; mid-June to late August the peak. Average summer highs sit around 22°C in the south, 18°C in Scotland — always bring a jacket, never rely on a forecast beyond 48 hours. For Ferry UK crossings on the North Sea and Irish Sea, December–February can see force-7 winds and cancellations; the English Channel services are the most reliable year-round.
Power, money, SIM
Mains voltage 230 V, 50 Hz, Type G three-pin plug. The currency is the pound sterling (£); Scottish and Northern Irish banknotes are legal tender everywhere in the UK but frequently refused in London. Contactless card payment works on every bus, tram, Tube, ferry gate and coffee till. Visitor SIMs from EE, Three, Vodafone and O2 are sold at airport arrival halls; any of them covers the whole Ferry UK port network.
When in doubt
Every major UK town has a Tourist Information Centre, often inside the railway station or by the cathedral. They hold free maps, paper bus timetables, and — for Ferry UK ports specifically — ferry sailing boards updated every hour. Ask.