Can you stand with me for the Kijabe Forest?

When I was a teenager I attended a high school on the slopes of the Rift Valley in Kenya, and we used to go hiking in the Kijabe Forest. We would climb over the fence at the back of school and scramble up onto the railway tracks. Then we’d follow them around the contours of the hills, and cut off into the woods.

One favourite spot was where a river came down the escarpment. You could jump from rock to rock up the river and come to a series of waterfalls. Or could you climb down from the trac...