I thought I would start this thread to better answer a query from photohiker:
"I'm planning to go up there later this month to do an overnight Wilpena, Edeowie, StMarys Peak hike, camping overnight at Cooinda. Be grateful for any hiking or photo tips you might have for the area."
I did this walk with 3 young kids (1 was 10 years old) in Oct 2005.
I had also travelled into this area 2 times while at uni (about 1981) - in June and in November.
The biggest issue to consider is water.
What we discovered in 1981 was that the June winter rains got the creeks into Wilpena flowing, but that Edeowie Gorge was relatively dry.
In November that year, the Cooinda Camp waterhole was a small mass of green slime (which we chose not to use), but there was a good flow of water in Edeowie Gorge. Our deduction was that general rainfall took a while to percolate through the rocks of the gorge and emerge well after the rains were past.
[Of course, a heavy rainfall would have a dramatic effect in the gorge, and is probably the only time the water falls are running]
I will add a few photos from the last walk in Oct 2005 which were scanned from prints that I took.
We lugged about 18 litres of water into Cooinda Camp on a day of about 37 C.
I had told the kids that if we couldn't find water, we would be coming back out the next day.

- My 10 year old walking inside the pound on a very hot day. Note the mesh to stop the flys (I swallowed 6 that day)
- F1020011.JPG (372.88 KiB) Viewed 92201 times
The water supply was actually very good, but to be safe we boiled it all, processing another 40 litres over the next few days.
The weather also grew much milder making our time very pleasant as well.

- Pool of Water at Cooinda Camp
- F1020018.JPG (297.45 KiB) Viewed 92201 times

- The main waterhole near Cooinda Camp - about 100m north from camping area with the track running along the top of the rise on the left side.
- F1030011.JPG (365.53 KiB) Viewed 92201 times