The above coordinates indicate the little path off the main path between the jeep track and the top of Nursery Ravine where you will find the balancing Dassie skull rock.
So many ways to get here - From Constantia Nek via various routes, From Kirstenbosch via Nursery Ravine or Skeleton Gorge.
The actual cache is placed at:
S 33 5(STX+GUM).(GUM-ROP) [DAM + ( ( STX + ROP ) * SIG ) ] / ( GUM + ROP )
E 18 2STX. (HUH+CUL+( STX*GUM))
It appears that some of the codes are missing - so GUM = 5 and ROP = 5 - thanks to Jake&Joshua for the heads up
Tahrs
The Tahr population on Table Mountain grew from a pair that escaped from the now defunct zoo on Rhodes Estate in about 1937. They are originally from the Himalayan area and thus alien to this country. The Tahr is a sturdy animal, slightly larger than a domestic goat. They are dark fawn in colour, thus well camouflaged, have good eyesight and are very agile. A superb jumper with rubbery pads under its hooves to enable it to negotiate steep ascents and descents. They were becoming a nuisance due to damage to vegetation and eventual erosion and were controversially hunted and killed on the mountain. There were however a few that escaped this hunting and family groups have once again been spotted on various parts of the mountain.
The Table Mountain National Parks Board have reintroduced indigenous Klipspringers to the area.
Nursery Ravine.
One of the popular routes up the western side of Table Mountain is Nursery Ravine named for the old forest nursery established in the valley at its head: Oudekraal. It was the idea of J.S. Lister who was Superintendant of Plantations in Cape Town. In 1884 forester Paul Schickerdanz was appointed the forest guard and the stone cottage in the nearby Ash Valley, now used by the Western Province Mountain Club, was built for his use. He was charged with establishing a nursery for exotic plantation trees as at that time it was thought that exotic trees would increase the water runoff in catchment areas. These days it has been realized that proper management of indigenous vegetation is indeed more efficient for this purpose.
Access to the nursery and this part of Table Mountain was provided via the Bridle Path (the jeep track up from Constantia Nek).
Several different species of trees were propagated at Oudekraal, including Blackwood, Silver birch, fir trees, pines, ash, elm and Turkey oaks. The Hely-Hutchinson Reservoir has covered some of the plantations and the rest along with the pine trees in the area were chopped down. There are still some trees at the site of the old nursery and you can still see ancient Cryptomerias, together with Turkey oaks and Silver birch. The invasive species have been removed and replaced by indigenous trees - Yellowwoods, Rooiels, Cape beech and others.
Thanks to Trevorh7000 for reminding me to put a checker here.
You can check your answers for this puzzle on Geochecker.com.