Cliff A cliff was a high , steep land feature . Planet One had a cliff made of diamond . River Song graffiti ed a message for the Eleventh Doctor on the face of the cliff . ( TV : " The Pandorica Opens " ) In Italy in 64 , the Doctor ' s TARDIS materialised on a cliff , then fell off it . Neither it nor its crew was harmed . ( TV : " The Rescue " , " The Romans " ) In Northumbria in 1066 , the Doctor ' s TARDIS materialised on a beach near a cliff . The Monk observed this from the top of the cliff . ( TV : " The Time Meddler " ) On the thirteenth moon of the thirteenth planet of the Thirteenth Galaxy in 1213 , Bob Kreesus fell over a cliff when he slipped on a banana skin . ( COMIC : " Triskaidekaphobia " ) In Cornwall in the late 17th century , the Doctor ' s TARDIS materialised in a cave near some cliffs . ( TV : " The Smugglers " ) On Earth , the Doctor ' s TARDIS materialised on a cliff , then fell into the sea when part of the cliff broke off . However , from the perspectives of the First Doctor , John and Gillian , for whom time was in reverse , the TARDIS rose up out of the sea and the piece of cliff reattached itself . ( COMIC : " Time in Reverse " ) On Oseidon , the Fourth Doctor and Sarah Jane Smith witnessed a soldier ( actually a malfunctioning Kraal android ) fall over a cliff . ( TV : " The Android Invasion " ) In Cornwall in the 1970s , Romana I was lured to a cliff and pushed off it by Cessair of Diplos , who was disguised as the Fourth Doctor . She was rescued by the real Doctor and Amelia Rumford . ( TV : " The Stones of Blood " ) Shortly after arriving on Dorsill , Peri Brown almost walked over a cliff , but was saved by Christopher Sheldon . ( PROSE : " Grave Matter " ) On Dido in 2493 , Bennett , disguised as Koquillion , threw Barbara Wright off a cliff . Bennett later fell off a cliff to his death while trying to get away from the two surviving Dido people . ( TV : " The Rescue " ) In 2563 , Bernice Summerfield fell off a cliff on Capella Four , breaking both leg s . ( PROSE : " Walking to Babylon " , " Steal from the World " ) On Peladon in 3885 , the Third Doctor ' s TARDIS materialised on a cliff . The Doctor and Jo Grant exited safely , but the TARDIS tumbled off the cliff . However , King Peladon had some his men bring the TARDIS up to the citadel . ( TV : " The Curse of Peladon " ) On one planet , the Doctor ' s TARDIS materialised at the foot of a cliff . It was then taken away by a giant lizard , forcing the First Doctor , John and Gillian to climb up the cliff . ( COMIC : " Lizardworld " ) The Sisterhood of Karn forced Morbius off a cliff , presumably to his death . ( TV : " The Brain of Morbius " ) While on Skaro , the Second Doctor pushed a Dalek posing as Omega off a cliff , destroying it . ( TV : " The Evil of the Daleks " ) On Andromeda , Castrovalva was located on the top of a high cliff . ( TV : " Castrovalva " ) On the Crooked World , the Doctor ' s TARDIS materialised on a cliff . It was later pushed off the cliff by the Whatchamacallit . ( PROSE : " The Crooked World " ) In the Land of Fiction , the Master of the Land dwelt in a citadel on top of a high cliff . Jamie McCrimmon climbed the cliff with the aid of Rapunzel ' s hair . ( TV : " The Mind Robber " )