I’ve done training dives in man made quarries under zero visibility conditions. There’s no way in hell I’d go into an actual cave under those conditions.
It was bad enough when you’d almost run into a purposefully placed sculpture or bathtub in that flooded quarry.
You had to do a scavenger hunt to find stuff to pass your training and it was super disorienting.
I don’t know if PADI still does that sort of thing or if it was unique to my training center conditions but it was wild.