Liwa Oasis is about 97.6 km south of the Persian Gulf coast and 150 km SSW of the city of Abu Dhabi in the Al Gharbia (Western) Region, on the northern edge of Rub' al Khali desert . It is centered around and stretches about 100 km east-west, along an arch curved to the north. It consists of some 50 villages. The geographic and economic center of the oasis is Muzayri`, where the highway from Abu Dhabi enters the oasis and then divides to the east (65 km to the easternmost village, Mahdar Bin `Usayyan) and west (45 km to the westernmost village, `Aradah).
The villages of Liwa Oasis are the southernmost settlements of Abu Dhabi and of the United Arab Emirates . The southern border of Abu Dhabi with Saudi Arabia , which runs at a distance between 16 and 35 km to the Oasis, is a straight line in the Rub al Khali desert, which is largely uninhabited. Mahdar Bin `Usayyan is the southernmost village of the Emirates, and also the easternmost of the oasis. 10 km south of the border, and 40 km south of the eastern part of the oasis is the Saudi oil facility Shaybah . However, there is no road linking Liwa Oasis and Shaybah, and no border crossing.
A modern, multilane highway connects the oasis area to the capital, Abu Dhabi.
An important traditional branch of the economy is date farming. There is a widespread use of drip irrigation and greenhouses . The importance of tourism is on the rise. Liwa Hotel in Muzayri` boasts three stars. Liwa Rest House, in the same village and run by the government of Abu Dhabi, is the second establishment in the oasis. It is primarily aimed at minor officials and businessmen. There is a 5 star resort operated by the Anantara Hospitality Group (named Qasr Al Sarab).  The nearby Moreeb dune , 22 km south of Muzayri` on a small road (15 km as the crow flies), with 300 meters of height is one of the largest dunes in the world,and attracts people every year during the Liwa festival  a large number of international and local visitors coming to see the offroad  and camel racing events.
The USGS Geographic Names Database  lists 39 populated places in the area of the oasis, which are listed from west to east in the following table. Some of the more important villages are printed in bold.
|Al Mariyah al Gharbiyah||المارية الغربية|
|Umm al Qurayn||أم القرين|
|Mahdar Bin `Usayyan||مهدر بن عصيان|