Most visits to Las Vegas are confined to the Strip and downtown, so it is not necessary to hire a car as both are easy to navigate by foot and there are several forms of transport that can be used. Local buses run the length of the Strip and into downtown and operate 24 hours a day with a flat fare including transfers. The old-fashioned Las Vegas Strip Trolley also runs the length of the Strip from 8.30am to midnight, and the Downtown Trolley circles between the Stratosphere and downtown at the same time. A state-of-the-art monorail runs above the streets, operating (depending on the day) from 7am to 3am between the Sahara Hotel and the MGM Grand. Taxis are plentiful and can be found lined up outside every hotel and casino and at taxi stands. Cars are the most practical way to explore outside Las Vegas, although there are bus tours offered to Hoover Dam.