We visited N493 about 10Km north of Disappointment cave. Description in Ozkarst was “Window into cave at NW end of depression.”
Existing records showed that it went as far as my survey points 20 and 21. There was no difficulty proceeding beyond there so we assumed that it may have had water in it when last explored. It opened up to a spectacular chamber so I decide it was going to be surveyed electronicaly with the Leica Disto X2.
Nullarbor caves 