The average rainfall for Palm Valley is only 200 mm per year.
During significant rainfall in the region, expanses of water can be witnessed flowing through the valley gorge.
Palm Valley and the surrounding area is the only place in Central Australia where Red Cabbage Palms (Livistona mariae) survive.
The name "wallaby" comes from Dharug 'walabi' or 'waliba'. Young wallabies are known as "joeys", like many other marsupials.
The Simpsons Gap area incorporates large areas of Mulga and is a major stronghold for over 40 rare and relict plants.
The area is an important spiritual site to the Arrernte Aboriginal people, where several dreaming trails and stories cross.
It take me 1 1/2 h walk by 35 degree to get there from my accomodation