Katherine Gorge is part of the Nitmiluk National Park and is actually 13 separate gorges that have been carved out of the ancient sandstone country by the Katherine River. The boat cruise visits the the two lower gorges.
Don't bother to comment. Just enjoy you visit to this ancient landscape.
@pusspup No Wylie. We try to stay in cabins in caravan parks. Every now and then I wish we had a van but the idea of dragging one behind me along the road does not appeal at all.