One of Madagascar’s most peculiar habitats can be found on the southwestern edge of the island. Strange spiny forests cover an area slightly larger than Wales – and it can only be described as a botanical wonderland. As the name suggests, spines are everywhere in this environment. There are huge, thorn-covered trees and strange, almost otherworldly-looking plants called Didierea, which are several metres tall and wave spiky arms towards the sky. This place looks like what a filmmaker might imagine an alien landscape to look like.