Driving in the center of town is not recommended. Park in one of the parking areas well-marked from the main roads in and walk or use public transport.
Be aware of immigrant beggars in parking areas offering to watch your car and approaching you at ticket machines when your wallet is in your hand. Local police refuse to prevent this activity even though they accept it is illegal and keeps visitors away.
Everything in city center is easily accessible on foot, and much of the main downtown/shopping area is pedestrianised. Be warned, though, that there are a few hills!
Bikes are also a great way to get around, though the same comment about hills applies here too.
