We rise up in a Cessna over the Wetlands of Australia’s largest National Park. My stomach lurches as I look down on an incredible variety of landscapes – coastal swamps, floodplains, lowland hills, escarpment, monsoon rain forest, and ancient plateau. Beneath me, crocodiles scuttle into the East Alligator River, and a fabulously diverse range of birds navigate over the plains. I look in every direction and see nothing on the horizon. From the sky, I have a glimpse of the immensity of Kakadu’s wilderness: it’s half the size of Switzerland – the whole Park is a protected area of nearly 20.000 Km2.