Public transportation
The public transit system in Hamburg, called the HVV, is very efficient. You are able to get nearly anywhere in the city either by train or by bus.
As with all other major German cities, Hamburg has an U-Bahn (underground/tube/subway) system and an S-Bahn (trains to outlying areas of the city and nearby suburbs) system. Many stations have access to regional trains as well. You can purchase U-Bahn and S-Bahn tickets at all train stations, but regional tickets and season passes need to be purchased at a Service Center (found in major stations). Many HVV employees speak English.
European XFEL is accessible by bus (Metrobuses 2, 186 and 285), with access to several S-Bahn stations (Iserbrook, Elbgaustraße, Halstenbek and the long-distance hub at Bahnhof Altona with the bus line 2). For more information and to plan routes, please visit the HVV web site.
Hamburg is very well connected to all regions in Germany and many worldwide destinations through its four long distance railway stations and its centrally located airport.