Which areas should I take more care?

Be careful in nice around the train station at night. Try and keep to the main streets and busy areas around the old town.

The Massena gardens at night are known for drug dealers and La Californie. La Promenade des Anglais is a known area for prostitutes. Try to stay in groups and take extra care after dark. Some neighbourhoods should also be avoided like Ariane and Les Moulins.