6 berth campervan hire Nullarbor, with room to survive the long bit

A 6 berth camper is the big-family workhorse: usually three double sleeping zones, a compact bathroom, kitchen, dining area and internal storage for the mountain of gear humans mysteriously require to cross a treeless plain. On the Nullarbor, that extra space is not luxury fluff — it is weather insurance when the wind gets up or it is 38°C outside and nobody wants to cook beside the flies.

Most 6 berth motorhomes in Australian hire fleets sit around 7.2 to 7.8 metres long and roughly 3.2 to 3.5 metres high. They are larger than a 2 berth camper, obviously, but still drive on a standard car licence in most cases. The trade-off is simple: more beds and facilities, less ability to squeeze into tiny urban parks or duck under low tree branches at old roadhouse camp areas.

• Good for: two adults plus kids, three generations, two couples who like breathing room, or mates doing the Perth–Adelaide run.
• Watch the payload: six people, water, food and luggage add weight quickly; pack like you are crossing Australia, not moving house.
• Do: assign lockers before day one so the aisle does not become a sandal-and-cereal graveyard.
• Don’t: assume every bed can stay made up while driving; some layouts convert the dinette at night.

The Nullarbor is not difficult driving in the heroic sense — it is sealed highway almost all the way — but it is long, exposed and unforgiving of sloppy planning. The Eyre Highway runs about 1,200 km between Ceduna and Norseman, with the famous 90 Mile Straight near Caiguna stretching 146.6 km without a bend. You will learn to love cruise control, playlists and snacks you can open one-handed.

A 6 berth camper Nullarbor crossing needs a calmer driving style than a car. Leave more room for braking, slow down before roadhouse entries, and give road trains space. Many are over 36 metres long and can throw a solid bow wave of air as they pass. If one wants to overtake, hold your line, ease off slightly when safe, and let the big fella go.

• Daily target: 350–500 km is sensible with kids or first-timers; 700 km days are possible but joyless.
• Wind: strong crosswinds can make a high-sided motorhome wander; slow down rather than wrestling it.
• Parking: use the truck/RV bays at roadhouses, not the little car spaces near the servo door.
• Don’t: drive at dawn, dusk or night if you can avoid it; kangaroos, wombats and camels are not reflective bollards.

The good news: a 6 berth camper fits most powered sites along the Nullarbor, especially at larger caravan parks and roadhouse campgrounds. The less-good news: you need to mention the vehicle length when booking or checking in, because some older sites are tight, sloping or lined with trees that were planted by someone who clearly owned a tent.

Powered roadhouse sites are handy for running air-conditioning, topping batteries and letting everyone shower without rationing water like a submarine. Unpowered sites and free camps are part of the Nullarbor experience too, but you must be self-contained and tidy. Dumping grey water or toilet waste in the scrub is the kind of behaviour that gets freedom camping shut down for everyone.

• Powered sites: expect to pay more than a basic bush camp, but they solve heat, charging and water stress.
• Free camps: many roadside rest areas allow short stays, often 24 hours; always obey local signage.
• National parks/reserves: book where required, use designated sites only and follow fire bans.
• Do: arrive before dark so you can check slope, wind direction and exit path.
• Don’t: park close to cliff edges on the Bunda Cliffs; limestone can undercut, and gravity is not negotiable.

A 6 berth motorhome is comfortable, but it is not a camel. Depending on the model, load and wind, many large campers use roughly 13–18 L/100 km. Fuel tanks are commonly around 70–90 litres, but you should plan as if range is shorter, because a headwind across the Nullarbor can drink diesel like it found a bottle-o.

Roadhouses break up the crossing, but some stretches are still 150–190 km between fuel stops, and prices can jump in remote areas. Top up earlier than you would in town. The classic mistake is saying, “We’ll get fuel at the next one,” then discovering the next one is closed, out of your fuel type, or far enough away to make the dashboard light feel personal.

• Fuel habit: refill when the tank drops below half in remote country.
• Water: onboard tanks are often around 80–120 litres; fine for careful use, not six long showers.
• LPG: used for cooking, hot water and sometimes fridge operation; top up before the crossing where available.
• Dump points: plan around larger towns such as Ceduna and Norseman, and check current roadhouse facilities before relying on them.
• Don’t: assume every tap is potable; look for signs and carry separate drinking water.

Most hire 6 berth campervans are built for sealed roads, not beach tracks, corrugations or heroic detours to see what is over the next dune. The Nullarbor’s main highway is sealed, but lookouts and side tracks can be gravel, sandy, potholed or badly corrugated after weather. If your rental agreement restricts unsealed roads, take it seriously; recovery bills in remote country are not a cute souvenir.

Heat and the wet both matter. Summer days can push past 40°C, making early starts and powered sites more attractive. After rain, unsealed access tracks can turn greasy or rutted quickly. Then there is quarantine: crossing between South Australia and Western Australia means restrictions on fruit, vegetables, honey, plants and some other products. Eat the apples before the border, not while arguing with an inspector.

• Road rule: stay on the Eyre Highway and approved access roads unless your hire conditions allow otherwise.
• Tyres: check pressure when cold and inspect for stones or sidewall damage at fuel stops.
• Fire bans: total fire bans are common in hot, windy weather; gas cooking may also be restricted in some areas.
• Wildlife: give emus and kangaroos room; swerving a tall motorhome can be worse than braking straight.
• Do: check availability online early if you need school-holiday dates or a one-way Adelaide–Perth style route.