All the above mentioned crags are sport climbing crags.
Unfortunatly KZN is not blessed in the bouldering department.
There are however a few small spots.
Area 51 (this is in Kloof Gorge along the river bed just downstream of the main waterfall.)
Along the river downstream of Shongweni Dam Before the Wave cave has some nice problems.
Near PMB there are 2 areas. Ferncliff and King Solomans Mine (RD on www.saclimb.co.za
There is a nice bouldering cave next to the Wave cave as well with some fun stuff in it.
Unfortunatly there are no RD's for the above areas. I have some rough scetches and descriptions somewere in a shoe box at home. If I get a chance I will dig them out for you.
See you at the varsity.