This is the well-known Ribbok Trail 27km of pretty magical stuff, but also hard work. Take it easy out there, there are some big mountains waiting for you.
Look out for some waterfalls, rock pools, Eland, Ribbok and loads of other game. The route is narrow and in some places really rocky, so watch your step. Unfortunately, you'll not be able to go through Cathedral Cave due to it being really unsafe.
You have two relatively big climbs, the biggest one of the two right at the start Generaalkop. Other nicknames such as Kneebrake, Moedbreek, Hartbreek and Inbreek should give you an indication of what this mountain is all about. All I can say is take this slope one step at a time and its pretty good getting to the other side of the mountain and into the valley.
The second half is a bit easier, but know that you still have some climbing to do before descending into the rest camp. It is not nearly as hard as the first climb, but it will definitely test the legs. The route will also take you over the legendary Brandwag Mountain, a signature of the Golden Gate.