Go flying on top of the forest!! We took the canopy tour and enjoyed it thoroughly. We got a 20% off season discount but the rates differ so do go there and check or check online closer to the date and also ask for a discount.
I surely recommend this. It was exciting and a great experience. Not at all dangerous and not scary. You will of course sometimes hear groups of people screaming, but we found it safe and exciting. Our guide Pandora was very sweet and a lovely guide. She told us trivia about the forest trees and about their eco tourism measures. They do not harm the trees or the forest in any way.
When you only have a few hours or less time do the walk towards the suspension bridge over the Storm River. It's a good chance to stretch your legs and the landscapes are good.
The trail starts just behind the restaurant and the first thing you see is a small waterfall coming down from the rocks. And from there on the track starts. Most of it is on a wooden log floor.
During the trail you get some glimpse of the suspension bridge and when you arrive at this bridge, you probably can see why they call this the Storm River.
When you want to know more, see my Tsitsikamma nasionale Park travelogue: A short walk towards the suspension bridge
But there is also the option to book accommodation or go on a 5 day hike, for more details for these and other activities check their website