Ms Stewart said they returned a few hours later to find the park unscathed but the inside and outside of the caravans covered in soot and ash.
The 5000-hectare large blaze broke out during catastrophic fire danger conditions on Wednesday afternoon, and burned uncontrolled in stubble towards the coastal towns of Edithburgh and Coobowie.
At least 11 properties have been damaged or destroyed, including homes and sheds, and 33 people have been treated for minor injuries including smoke inhalation.
It was another tough day for Victoria yesterday which saw record-breaking temperatures and 100km/h winds.
Firefighters battled more than 60 blazes across the state and more than 80,000 customers were left without power in the western part of the state, with Geelong, Bendigo and Ballarat hardest hit.
However, Weather is forecast to be milder during the weekend. The fire danger rating for Friday has been downgraded to high in the northern districts of the state, and low all across the southern regions.
Mildura in Victoria, Australia, was covered by a thick dust storm on Thursday which turned the entire town orange.
Temperatures soared to 40C and intense high wind conditions created the cloud cover.
A code red fire warning is in place across the state, meaning residents have to be ready for the worst bushfire conditions.
'The sky is literally brown, the dust in the air is just so thick. The sky is now deep orange. And the wind is harsh,' a resident told AAP.
- additional reporting AAP
