[1] It is one of the gates to the Tassili N'Ajjer National Park with caves situated under the sands containing prehistoric drawings dating from 6000 years BC.

The town is virtually rainless throughout the year as the average annual rainfall is around 10 mm (0.39 in), and summers are especially dry.

The sky is always clear over Illizi all year long and the relative humidity is very low.

Illizi lies on the N3 national highway, which leads north to In Amenas and Touggourt and south to Djanet.

[8] The city is home to CSSW Illizi, an amateur side which plays in the south-east group of the Inter-Régions Division, the third tier of the Algerian football pyramid.