Awesome video from a very cool exploration project in Tasmania. Wet Mules team used Golem Flex CCRs. They were performing in some very demanding conditions. Cold, deep and very silty. The cave formations are breath taking, though. Too bad that the cave does not "go" (yet).
In January 2013 we attempted to push the second sump of Junee again. The distant part of the sump is blocked by a rock collapse which prevents access to the theoretical Junee "Master Cave" beyond. Several divers have looked at the rockpile but failed to find a way on. Sadly, this attempt by our group failed again.
However in the process, numerous dives were performed on the new Golem Gear Flex rebreather and what I believe to be the first video of the second sump was captured. This part of the video may be a little long and boring for some viewers but will be of interest to those who have dived the sump, and those who plan to visit in future.