Lets just say I did this the long way. I covered 40ks in just over 5 hours. It was good training for an Ultra that I will be running in a month, but it's not the route I would recommend. Half of my run could have been cut out if I had only driven to the picnic spot at the furthest end of the two Steenbras dams.
From the end of the dams there is a jeep track running up a valley and towards Kogelberg Peak. The track passes the peak on a contour about 520m lower than the summit and about 2km away from it. This means that there is quite a climb to the summit still. unfortunately an old path that traverses the peak (and I assume summits the peak at some stage.) is no longer in use and has become heavily overgrown. I followed it as far as a gulley where it became too overgrown to follow. The suggested route is the route I came down on. There is a clear slope running up the back of the Peak with no ridges or cliffs that need to be crossed on the way. There is however a knife edge close to the summit. Like most knife edges the leeward side is a lot more forgiving but one should always be careful of the 1000m gorge on the other side of the ridgeline.

The route I took is from within the City of Cape Towns Seenbras Dam Reserve. I always try to get home early and so I ran the flat section in the dark for the first hour and a half. Apparently it is quite difficult to get permission to summit this peak if you ask for it. I did not see anyone to ask along the way though. The whole experience was quite surreal. There is a really good jeep track which runs past the summit and tarred roads around the dams yet I did not see anybody for more than 6 hours.