Rostov-on-Don’s public transport system isn’t really set up to be used by tourists. There is no metro in the city, and the tram network is limited to say the least. Buses can be crowded, and a very difficult to use for anyone without a grasp on the Russian language. That said they are immensely efficient, so don’t be afraid to jump on and give them a go. Tickets can be bought from the driver onboard.