Calibris was a giant mechanical planet, which functioned as a spaceport. Sixty million people passed through it every day.

The Tenth Doctor and Donna Noble visited Calibris to fix the TARDIS' fluid links. The criminal known as Gully was on Calibris searching for Time Reaver guns, which were brought here by Cora. This caused the Vacintians to come and enforce law and order on the planet.

There is also a smuggler's tavern located on this planet called Vagabond's Reach.(AUDIO: Time Reaver)

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