Public transport in Istanbul comprises a bus network, various rail systems, funiculars, and maritime services.
Public transport in Istanbul (boats, subways, buses, trams , funiculars ) requires a magnetic card (Istanbul Kart) . You find it in the small kiosks near all metro stations, piers, and also bus stations. It costs 7TL , you will then add credit and top it up. Most trips cost 1.95 TL each way.