Guernsey is the second largest of the Channel Islands. It is part of the Common Travel Area, allowing passport-free travel to and from the United Kingdom, Jersey, the Isle of Man or Ireland. Travel to the Schengen Area of Europe requires a passport or an EU national identity document and from 2025 entry to the Schengen Area will require compliance with the European Travel Information and Authorisation System (ETIAS) and non EU citizens may need a visa. Entry from the Schengen Area requires a passport, except when a concession is in place for short trips to Guernsey, when an EU ID card is acceptable.
This article includes some references to Alderney, Herm and Sark, which are part of the Bailiwick of Guernsey.