San Diego

San Diego was a city in the American state of California.

During the Year That Never Was, Martha Jones claimed to have gone to San Diego to collect one of the vials of liquid needed to arm the gun she was allegedly preparing to kill the Master with. (TV: Last of the Time Lords)

San Diego was one of the cities suggested by Diana Goddard to leave Henry van Statten after she ordered for him to be taken away, his memory wiped, and dumped "someplace beginning with S." (TV: Dalek)