You can get around Dubai by bus, taxi, metro or car hire. Dubai's large bus network spans major parts of the city. Buses are also a cheap means of transportation. Check bus routes and buy tickets through the Roads and Transportations Authority which runs the service. You can also take the Dubai metro which also covers major parts of the city. Alternatively, flag down a taxi, book one over the phone or have your hotel arrange one for you. Taxis are metred but you'll need to know where you're headed to avoid confusion and over paying for your trip. You can also hire a car from one of several car hire agencies available at the airport and inside the city. You'll need to be at least 21 years old to be able to hire a car.