The hot pools are located about 10min walk from the Cedar Flat huts. The main pool (and hottest) is located on the opposite side of Wren Creek to where you arrive and is situated right beside the cliff wall. It was dug deep enough for four of us and we had to add 6 buckets of cold water to be able to get in. Was wonderful and the sandflies were minimal (but still there). We didn’t go to the other pool further up the river as others at the hut had mentioned that it was about 17degrees (compared to the 40degree pool we were in). Would expect, however, that when the creek became flooded the pool may disappear and need to be re-dug. [Carrie, Christchurch]
Sep 2014: Main pool further up valley (Close to Hotel Ruins) are better, deeper and (normally) a comfortable 45 degrees C. If colder it means cold river water is infiltrating pool. This normally post flood [Ben Moore, NZ]