Borneo

Borneo was a rainforested area (PROSE: A Big Hand for the Doctor) on Earth. (AUDIO: Voyage to Venus, PROSE: Alien Bodies)

When the Sixth Doctor took him to Venus, Henry Gordon Jago mistook it at first for Borneo. (AUDIO: Voyage to Venus)

By the late 21st century, Borneo was known as the "East Indies ReVit Zone". (PROSE: Alien Bodies)