Check with your individual campervan company, but generally your insurance will be deemed invalid if you drive on restricted roads. It will vary from company to company, but generally 2WD campervans can only be driven on sealed/bitumen roads with the exception of well-maintained roads leading into holiday parks and well-maintained roads on Kangaroo Island in South Australia. 4WD vehicles can usually be driven on recognised unsealed roads but may need written permission for the following remote areas: Simpson Desert, Gunbarrel Highway, Strzelecki Track, Cape York, the Bungle Bungles, Oodnadatta Track, Birdsville Track, Warburton Road, Cape Leveque, Tanami Track, The Plenty Highway, Kalumburu Road and Gibb River Road. No rental vehicles are generally allowed on: the Canning Stock Route, the last two kilometres of the Lennard River Gorge Road, the Lost City in Litchfield Park, Cape York between December and May, and the Telegraph section of the road to Cape York.
Campervans are taller than most passenger vehicles, so know the clearance height required and consider things like service station canopies and low-hanging branches.
Some highways either restrict or recommend non-use for vehicles over a certain length, so research which roads you can travel and how to access them.
Always bear in mind that campervans are heavy and require longer braking distances than you’re probably used to.
If you are going to tow something behind you, consider whether your campervan can carry the extra weight up steep mountains or slippery surfaces. Make sure the hitch attachment is secure, and also consider the total length of the campervan and attachment combined.
Before each leg of your trip, make sure you thoroughly check the following on your campervan: electrical and plumbing systems; integrity of the LPG tank; fluids, brakes and tyres; angle of mirrors; and hitch and coupling system if there is one.