Would you like to see a more authentic place in French riviera? St Paul de Vence if a must see village.
In order to visit St Paul de Vence, take train from Nice to Cagnes sur Mer station. Price is around €8 from Nice.
After train you need to take bus #400 to go to the village. However, bus comes every 45 min, so if you don’t want to wait too much, you can use Uber. It costs 15 euro from train station to the entrance of old village.