In one of my best-selling books "Carstensz, Stone Age to Iron Age" I mentioned that the guides essentially abandoned us to work out our own 2000' rappel down the sleet and rain slicked limestone cliffs littered with ratty knotted frayed rope. Or something that passed for rope.
It appears as though a guide has been sponsored by their alma mater. Got this off a social post from one. At least they had better weather.
If you want to read the exciting story that I have told at dozens of meetings for enthralled audiences, here it is. By the way, it qualifies for Prime and Unlimited on Kindle if you have either.