Before departure it is important to check that you have the necessary documents - identity and health - to enter the country you are travelling to. Otherwise you may be refused entry.
The Schengen Agreement, which came into effect in 1995, abolished internal border controls between member countries. The agreement introduced uniform border procedures and common rules on visas and political asylum allowing people to travel freely among the signatories.
Passengers travelling to a Schengen destination must show a current identity document that is valid for foreign travel.
Countries which apply the Schengen Agreement in full are: Austria, Denmark, Estonia, Finland, Austria, Germany, Greece, Italy, Latvia, Lithuania, Luxembourg, Belgium, Netherlands, Malta, Poland, Portugal, Czech Republic, Slovakia, Slovenia, Spain, Sweden, Hungary, plus Iceland, Norway and Switzerland (which do not belong to the EU). Sweden, the last country to join the Schengen area, opened its land borders in 2008 and air frontiers at the end of March 2009.