Hamburg's extensive public transport system consists of the U-Bahn (subway), the S-Bahn (suburban train), buses and harbour ferries, and makes getting around without a car pleasurable and easy. The U-Bahn is excellent and serves the whole city centre. It connects with the S-Bahn that services the suburbs, and this train network is the fastest way to get around the city. Buses are also convenient and night buses operate in the downtown area. Taxis are generally less expensive than in other German cities and are available at all hours. It is possible to hire a car but parking in some areas of the city, like the famous Reeperbahn, is extremely difficult to find and makes driving stressful. Like most cities in Germany it is possible to hire bicycles at very little cost and this is a fun way to get around. Parts of the city are best explored on foot and it is generally considered a safe city, but it is worth taking good care of your possessions when walking and using public transport.