This is because environmentally damaging bushfires have started from campfires. Many of the unique vegetation communities within the WHA are highly sensitive to fire.
Campfires can also lead to local environmental degradation around campsites.
Also it is better to rely on a fuel stove as firewood is often scarce in these areas. With a fuel stove you will not need a campfire, so there is no risk of your fire burning down into the peat soil, or of sparks blowing away to start a bushfire. We recommend that you use fuel stoves instead of campfires in all situations irrespective of whether you are within the World Heritage Area or not. In particular, do not use campfires in rainforest, alpine or conifer communities. Do not light fires on peat.