Kalahari

The Kalahari was a desert on Earth.

Early humans lived in the Kalahari. (PROSE: The Mary-Sue Extrusion, Heart of TARDIS)

When the TARDIS materialised on the plains outside Troy, the First Doctor initially thought that he'd landed in the Kalahari Desert, and went outside to ask his way to the nearest water-hole from a passing bush-man. (PROSE: The Myth Makers)

Christina de Souza had been on holidays in the Kalahari. (TV: Planet of the Dead)

In 1981, UNIT encountered Zygons in the Kalahari. (PROSE: The King of Terror)