When my father attempted to complete the Ormiston Pound circuit in the Northern Territory’s West MacDonnell ranges in 2011 he was unable to do so due to the amount of water in Ormiston Gorge. When I tried in 2012 I experienced the same thing, but I was able to complete the full circuit on a revisit last year without getting my boots wet.
I did the circuit clockwise (opposite to that described in the linked post above), starting with the Ghost Gum walk which delivers fine views before dropping down into the gorge and permitting completion of the circuit. I’d recommend doing the walk this way – if there is too much water in the gorge to navigate, you’ll find this out at the start rather then the end of the walk, and then can make a decision about how far to walk the other way if you are so inclined.
See here for a full photo set of the walk.