Getting around in Dar es Salaam can be confusing for visitors. Walking is a pleasant way to see the city, but pedestrians should be mindful of aggressive drivers as the city has no sidewalks.Minibus taxis (called daladala) and buses operate on a flat-fare basis, but travellers should be aware that these do not operate on regular schedules and are often dangerously overcrowded and are popular with pickpockets.Taxis can be hailed from outside most hotels in Dar es Salaam, at a fixed fare, but in most other places it is customary to negotiate the fare in advance. Travellers wishing to hire a car should make sure they have a valid international driver's license, which must be endorsed by the police on arrival in the country. Travellers opting to drive themselves outside of the city should look into hiring a 4x4 or SUV and be aware that cattle and other pedestrians tend to ignore the rules of the road.