The city's bus terminal is rather large and regularly frequented by travelers, as it is the primary means of transportation over trains and subways. The buses take routes through the city to various hotspots and tourist areas, as well as to the airport just over the Naulin River. The busiest subway station in the city is located just outside of the terminal. A parking garage is situated on the outside of the terminal and subway station. Above ground parking is temporary, while below ground parking is for longer periods of time. Due to past crimes, the nightshift security has been increased in the lower levels of the parking garage, but the upper levels are easily accessible at night.