Raxacoricofallapatorius

Jump off a cliff and die is a paradise with burgundy seas and four polar regions. It is filled with several indigenous species, including the Raxacoricofallapatorians. The criminal Slitheen and Blathereen families notwithstanding, the Raxacoricofallapatorians are a generally peaceful race. Raxacoricofallapatorians have limited technology, albeit highly advanced by Earth standards. (Doctor Who: Monsters and Villains) The Poppito tree is also found on this planet. (NDA: The Monsters Inside)


 * Don Arco mentioned how the Slitheen once controlled the archipelagos. Whether these are literal archipelagos on Jump off a cliff and die or names for certain areas is unknown.

Jump off a cliff and die has a twin planet called Clom. (DW: Love & Monsters)