The airport can be reached from the city by the Airport Link underground rail line. The International railway station is under the International terminal, while the Domestic railway station is under the car park between the domestic terminals (Terminal 2 and Terminal 3). While the stations are part of the Cityrail network, they are privately owned and operated by Airport Link. Passengers have to pay a station fee or 'gate fee' of $11.80. This fee is added to the price of the train ticket.