I've been in my fair share (and then some) of stinky hot springs, but Guanzihling was not one of them. Not just because the hotel was faking it, mind you; we traipsed down to the actual source and that, too, was scentless. But I will grant that our swimsuits absorbed remarkable quantities of the mud, which did not appear to diminish no matter how often you rinsed and squeezed them dry...