This is another interesting geological formation in the Gawler Ranges and a bit more remote than Wave Rock. Access is mostly by dirt roads but they are no too treacherous. Our Kia Sportage managed this quite easily.
The roads are quite well signposted so as long as you an eye out you wont get lost. Mobile phone reception is a bit variable so relying on Google Maps or similar maybe a little tricky. It always good to have a physical map when travelling in remote areas.
Once you get to the carpark which isn’t huge there is a walk to the organ pipes. The carpark has a nice little gazebo and an toilet. The walk will take about 20 minutes and is for the most part easy. There are a few rocks to walk over or around toward the end. If you are a little unsteady a walking stick or pole would be well advised.
The walk is definitely worth it. The rock formations are really spectacular. I imagine if it was raining the would be a nice waterfall.
I was warned to be careful as there is some slime on the rocks. Despite this I managed to slip and fall quite heavily. Lucky not to break my arm, only denting my pride.
We did see some local kangaroos on the way back. We managed the organ pipes and wave rock from Wudinna in about half a day.
Sizing up the pipes 
The path in 
The path 
Organ pipes 
Organ pipes 
Mushrooms on a log