Its giant walls, terraces and ramps seem as if they have been cut naturally in the continuous rock escarpments.

UNESCO: MEDIA SERVICES

The fleet connects the spectacular flamingo-fringed soda lakes of Manyara, where Hemingway hunted, to the Great Rift Valley escarpments and the remote northern Serengeti, into which few venture.

BBC: On the hunt with Hemingway

These formations run in broad escarpments jutting above the landscape, creating solid walls and occasionally breaking into tall sections, like stubby sandstone fingers reaching towards the sky.

BBC: The perfect trip: New South Wales