This is an amazing walk. Not particularly difficult. Except maybe the steps back up to the carpark. If you stop to swim in all three waterholes you can easily spend a day there. But make sure you take the time to take in your surroundings. The towering layered gorge walls that took millions of years to develop, the immense forces of nature that have pushed and curved the rocks into amazing shapes and patterns and the thunderous river that carved out the gorge itself. Sit at Fortesque Falls and just take it all in. Amazing! Oh and the water at Circular Pool is icy, but if you climb onto the ledge on the far side of the pool the water coming out of the fern covered rocks is wonderfully warm. Enjoy!