The only other way to get around without your own vehicle is by taxi. The air-conditioned green taxis are operated by the Mowasalat transport company known as "Karwa" taxis. The other kind of taxis are "limousine" taxis, which are unmarked - and thus almost impossible to stop - and may well be your only choice when staying at an international hotel. They are more expensive can cost twice as much as the Karwas, and may not feature a meter. If you feel secure about the price, you may negotiate it up front. Otherwise, insist on a meter.
The demand for taxis exceeds the supply and waiting times can vary greatly. Trying to obtain one during morning business hours requires about 24 hours notice. In other circumstances it may take 90 minutes or more to get an on-call taxi, and stopping one may be impossible in many places. The only places where you are guaranteed to find a taxi normal or limousine are at major malls, the airport and international hotels.
Occasionally, a local driver will offer to give you a ride if he or she sees you on the side of the road. It is customary to offer some money at the end, though sometimes they will refuse to take it. You can tell when someone is offering if they slow down and flash their headlights at you; beckon them over with a wave in response.
Tourists can hire a car at one of the several car-rental agencies located at the Doha International Airport. It is recommended that you have a vehicle reserved before touching down at the airport, otherwise tourists may not be able to obtain the best price and/or encounter waits while cars are brought into the temporary parking area from outside lots. Some rental agencies will require that you have an international drivers' licence.