While you shouldn't expect rolling sand dunes, this arid park does cover a huge 1320 sq km and is rich in flora and fauna that thrive in the dry environment. There are more than 670 indigenous plant species here, and in spring and early summer the landscape is transformed into a colourful wonderland of wildflowers. The best-known resident is the industrious but extremely elusive mallee fowl; your best chance of spotting one is in the aviary at Little Desert Nature Lodge. Emus, kangaroos and wallabies are regularly seen.
The Nhill–Harrow Rd through the park is sealed and the road from Dimboola is gravel, but in the park the tracks are mostly sand and only suitable for 4WD vehicles or walking. Some are closed to vehicles in the wet season (July to October).
The traditional custodians of this region are the Wotjobaluk, Wergaia, Jadawadjali, Jaadwa and Jupagalk people.