Bobbejaans River is a tributary of Bains Kloof and it falls under Cape Nature.
You start with a steady uphill hike of an hour or two parallel to the river. At the top is a waterfall which you can see for some distance, and just before this is a pool which can only be reached by a swim and a scramble - at least, that's what they say, because we didn't manage to complete the scramble. If you want to shorten your trip, you can also cut down into the kloof from an earlier point on the path.
Since it is a fairly steep kloof, in a few places you need a definite head for heights and an ability to scramble down the steep rock sides of the gorge. There are no compulsory jumps, but a few optional ones, and lots of scope for exploring. It ends up in Bains Kloof, at which point you turn upstream and return to your starting point.
Above the Eerste Tol village, Bain's Kloof (Wit River) also makes a pleasant kloofing trip. You can walk up a gravel road and path as far as Junction Pool, and come back down the river. Halfway down is an unusual aqueduct dug through the rock, ending at the site of an old mountain mansion, now demolished, overlooking the pass.