There are many fare options available to ride the streetcar, but all you need to do is walk on this Saturday and enjoy free rides to celebrate Sun Link's first anniversary. If you haven't taken a ride on the streetcar yet and you enjoy it on Saturday, there are a some things to keep in mind after the free day. Cash is not accepted on the car, but you can use it at machines at the stops to buy a $4 one-day pass. In addition, you can buy SunGO passes online or at regular Sun Tran merchants. Discount fares are available for certain students, low-income residents, seniors and disabled passengers. The City of Tucson has a video that tells you everything you need to know about how to ride the streetcar.