A rainforest has lots of 'layers'. Down on the ground, very little sunlight reaches the leaves. Most of the action happens up in the canopy - the green roof of leaves at the top. That is where most of the birds, monkeys, butterflies and insects spend their lives. From the forest floor, you mostly look up and see leaves.
The Kakum canopy walk solves this. Workers built a long bridge of rope and planks high in the trees, tied to the biggest trunks. The bridge sways gently when you walk on it. Below you, the forest floor is 30 metres down - about as far as the top of a tall block of flats.
From the bridge, you can see things you would never see from the ground. Bright butterflies in the sunshine. Forest hornbills with long curved beaks. The very tops of the trees, with flowers and fruit growing where nobody on the ground can reach. The whole forest looks completely different from up there.
Kakum's forest is also home to many shy animals - forest elephants, antelopes, monkeys, civets. Most of them are very hard to spot, even from the canopy. But knowing they are moving around below you, in the green shadow, is part of what makes a walk through Kakum so exciting.