I did this one last weekend, anticlockwise, about 5hrs very satisfying walk. First half of the trails was quite normal, just a dull up hill in the woods, and there are quite a lot of people doing trail running on the Border Track to Binna Burra.
when turned off from the Border Track, it was getting exciting, along the way down the Green Mountain there are dozens of waterfalls and the track are rougher, wilder and much more fun too.
I needed to cross the creek quite a few times, and the rock was really slippery. I finally saw the native blue crayfish this time.
highly recommend this one.
BTW, the GPS signal was bad, I tried to record it, but my phone just kept searching for signal., the good thing is the tail is well signed.