Ice planet
From Tardis Wiki, the free Doctor Who reference
Ice planets were planets which consisted primarily of icy terrain. The Doctor visited several ice planets on his travels, most notably the planet Calufrax. (TV: The Pirate Planet) The Monk was once trapped by the First Doctor on an ice planet. (TV: The Daleks' Master Plan) One of the planets in the New Earth System was the ice planet High Sierra. (COMIC: Doctor Who and the Dogs of Doom) The Twelfth Doctor took Clara Oswald for skiing practice to the ice planet Isen VI. (COMIC: Terrorformer)
