Even after the black summer Australians have just endured, it's not bushfires that's keeping the nation's insurers awake at night.

Climate change is bringing cyclones further south - towards highly populated areas like Brisbane, the Gold Coast and northern NSW.

Insurers are warning that unless the Federal Government takes drastic action, parts of the country may even become uninsurable.

And as Geoff Thompson discovers, it's not some threat on the horizon - the conditions are already here.