By ship
There are boat tours, which pass through Belgrade. These are Trafalgar Tours in English, which cruise along the Danube and have a two day stopover in Belgrade.
By road
Hitchhiking across Serbia is still acceptable and most drivers will treat you like a friend. However, necessary precautions should still be taken. Generally, it is easy to hitchhike through Vojvodina and much more difficult to hitch a ride from Belgrade to the south, to Kosovo, or Macedonia and Montenegro. The Hitchhiker's Guide to Serbia (http://www.serbiatraveler...) offers a collection of hitchhiking tips for a number of cities and towns in Serbia. It was made by the members of the Serbia Travel Club, an association of independent travelers from Serbia, and is available in English and Serbian.
By bike
The cycling route EuroVelo 6 (http://www.eurovelo6.org/...) which runs from the Atlantic Ocean to the Black Sea, crosses Serbia by following the Danube river. Most of the advised itinerary follows minor paved roads, and directions are clearly indicated by a specific EuroVelo 6 signage.
Although too few cities offer appropriate cyclist-friendly infrastructures, cycling is slowly gaining interest among the population as an economic and sustainable alternative way of touring and commuting.
By car
If your vehicle is registered and insured in an EU country you do not need a green card. Otherwise, make sure that your Green Card has an uncancelled "SRB" box. Coming in from Hungary, the Szeged/Horgos border crossing is notorious for its congestion. If crossing the border from Hungary, try the Tompa/Kelebija crossing point, about 20km west.
Please note that cars over-taking will often use the unofficial "middle-lane". Exercise caution and pull over to the hard shoulder on the right to let them through safely.
Police are generally stationed at major junctions or at underpasses to control traffic and speed. Drivers commonly warn others of a police presence by flicking the high-beams on two or three times. Police interceptors patrol all major highways. Drivers speeding and/or driving aggressively are stopped. Speeds of up to 140km/h in 120km/h zones are usually, but not always, tolerated.
Note that the traffic law is strict. No person under age of 14 must not ride in the front seat, seat belts are obligatory for those who sit in the front, blood alcohol content is limited to 0.03% and fines are from â¬30 for smaller violations up to 60 days in prison and â¬5000 for causing a larger traffic accident both locals and foreigners. IMPORTANT! If you are driving on country and local roads, pay attention to the bicycle riders, tractors and other heavy agricultural machines, especially at night! They can be without proper light signalization and hard to see, so slow down at night.
The highway is tolled, but the toll is no longer higher for foreigners than for locals. Highway tolls cost on average 0.03â¬/km and can be paid in Serbian dinars or Euros. They are charged by road section, so it's possible to pay more if only part of section is used.