要ETA, 很快的。要下載一個app, 把有關的信息輸進去，還有你的護照還有錢。剛剛從10英鎊變成16英鎊

Starting January 8, 2025, U.S. citizens and most non-European travelers need an Electronic Travel Authorization (ETA) to enter or transit through the UK. This includes travelers from the US, Canada, Australia, and other non-European countries. The ETA is a digital permission to travel to the UK, not a visa, and must be obtained before travel.