- Ubari is a city located in southwestern Libya, near the borders with Algeria and Niger. It is the capital of the Ubari District within the Fezzan region. The city is known for its unique geography, as it is surrounded by large sand dunes and is located near the Ubari Oasis. The oasis and its surrounding lakes, such as Lake Ubari and Lake Mandara, make it a popular tourist destination for its natural beauty. Ubari is also home to several Berber and Tuareg communities, known for their traditional way of life and cultural heritage.