Simpson Desert Crossing
1100 dunes of pure sand punishment
The Simpson Desert serves up 500 kilometers of pure sand torture between Dalhousie Springs and Birdsville, crossing 1100 numbered red sand dunes that run perfectly parallel north to south. Big Red — Dune 1 on the eastern approach — stands 40 meters tall and has claimed more differentials than any other pile of sand in Australia. The French Line track follows the original 1936 survey route, passing Poeppel Corner where three states meet at a lonely concrete post in the middle of absolutely nowhere.
This is difficult-level sand driving that separates weekend warriors from serious desert rats. Aired-down tires, sand flags, recovery boards, and the ability to read dune faces are essential. Travel May through September when daytime temps stay below 40°C — summer crossings are potentially fatal. Most expeditions take 3-4 days with fuel caches, moving in convoy because getting stuck alone means hoping someone finds your bones. Conquer the Simpson and you’ve mastered Australia’s nastiest sand country.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Overland Route |
| Surface | Sand |
| Features | Camping, Historic, Remote |
| Length (miles) | 311 mi / 500 km |
| Duration | 3-4 days |
| Max elevation (ft) | 650 ft |
| Best season | May-September |
| Minimum vehicle | Modified 4WD with sand tires |
| Nearest town | Oodnadatta, SA |
| Land manager | SA National Parks and Wildlife Service |
| Permit required | Yes |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | Yes |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
What vehicle modifications are absolutely necessary for the Simpson Desert crossing?
Sand tires (or sand flags), recovery gear including sand ladders, and dual battery system are essential. Stock vehicles will struggle badly in the deep sand and risk getting stranded.
Is the Simpson Desert crossing possible during summer months?
No, summer temperatures exceed 45°C (113°F) making it extremely dangerous. The crossing is only recommended May through September when daytime temps stay below 30°C.
Do I need a permit to cross the Simpson Desert and how much does it cost?
Yes, you need a Desert Parks Pass from SA National Parks which costs around $95 for vehicles. Book online before departure as rangers patrol the area.
What's the most challenging part of the 1100 dune crossing?
Big Red (Dune 1) at the western entry — it's 40 meters high with soft sand approaches that catch many vehicles. Many attempts are needed and some turn back here.
How much fuel range do I need and where can I refuel?
Minimum 800km range required with jerry cans, as there's no fuel between Oodnadatta and Birdsville. Most vehicles use 1.5-2x normal fuel consumption in the sand.