PASSPORTS: VALID Passports are required for this cruise. Be sure to check your passport. It MUST be valid for 6 months after your return. There are no exceptions to this rule!
VISAS: Different countries have different regulations regarding visas, it is your responsibility to know the requirements for travel to Netherlands, England, Wales, Scotland and Ireland.
The Netherlands is a party to the Schengen Agreement. This means that U.S. citizens may enter the Netherlands for up to 90 days for tourist or business purposes without a visa. Your passport should be valid for at least three months beyond the period of stay. You need sufficient funds and a return airline ticket. Netherlands International Travel Information – Bureau of Consular Affairs.