TARDIS swimming pool The Doctor ' s TARDIS was equipped with at least one Olympic - sized swimming pool . ( PROSE : " Loving the Alien " ) History . The swimming pool was used by Leela , and Borusa also hid from the Sontaran s in this area . Both the Fourth Doctor and Leela referred to this room as a " bathroom " , and the Doctor described what K9 called " [ being ] totally immersed in H2O " in this room as a " fine time to take a bath " . ( TV : " The Invasion of Time " ) During the Doctor ' s fourth incarnation , the TARDIS had two pools . ( AUDIO : " White Ghosts " ) One of them was down the hall from the café . ( PROSE : " The Last Thing You Ever See " ) Peri Brown once used liquid nitrogen to freeze the pool into a skating rink , much to the Fifth Doctor ' s displeasure . ( AUDIO : " The Roof of the World " ) The Seventh Doctor once jettisoned the TARDIS ' pool due to leakage , which Mel found bothersome as she wanted to go swimming at the time . ( TV : " Paradise Towers " ) He later restored the pool , and used it to brew bootleg beer in order to infiltrate 1929 Chicago ' s gangster subculture . Ace failed to appreciate the state of the pool when she wanted to swim , nor did she appreciate the Doctor ' s joke that swimming in the beer would " give it added body . " ( PROSE : " Blood Harvest " ) When Izzy Sinclair had her body temporarily swapped with that of the alien Destrii , Izzy had to occasionally use the Eighth Doctor ' s swimming pool to keep Destrii ' s amphibious body alive . ( COMIC : " Beautiful Freak " ) When the Tenth Doctor and K9 visited a planet for several hours to help sort out an issue on a planet of slobbering dog monsters , Rose - the - cat became very bored and began doing random things in the TARDIS . One of these involved visiting the TARDIS pool and throwing potted planted into it . Sometime later , when the Doctor was attempting to form a list of things to clean in the ship , the pair discovered the plant - polluted - pool . Rose acted just as shocked as the Doctor was , pretending to be wholly unaware how such a thing could happen . ( COMIC : " A Rose by Any Other Name " ) When he first met Amy Pond near Easter 1996 , the Eleventh Doctor was soaked because — as he explained to her — he had just climbed out of the pool which had fallen into the TARDIS ' library during the crash . After the TARDIS finished repairing itself , the Doctor mentioned that he wasn ' t sure where the swimming pool was now and suggested that it was possibly in the wardrobe . ( TV : " The Eleventh Hour " ) The Doctor implied that he swam laps in the pool as a way of avoiding Amy and Rory when they were being amorous . ( TV : " Amy ' s Choice " ) The Doctor took Alice Obiefune to the pool during her first visit on the TARDIS . She mistook several creatures swimming in the water for goldfish and the Doctor explained that they were actually " a highly aquatic alien race whose world was destroyed , " one of whom was named Reg . Later , Alice witnessed the Kharitite and its owner , a giant adolescent walking squid , playing together in the pool . ( COMIC : " After Life " ) John Jones ended up in the TARDIS swimming pool after a crash that separated him from the Eleventh Doctor , Alice , and ARC across four separate dimensions . ( COMIC : " Four Dimensions " ) The Doctor landed the TARDIS against a partially constructed skyscraper in July 1969 , with its exterior oriented face - up . He then instructed Amy to open the doors all the way to the swimming pool . A moment later , River Song dove from several stories above into the pool , breaking her fall . Her impact was sufficient that some water splashed even beyond the exterior doors . This was done to fake River ' s death in the eyes of the Silence . ( TV : " Day of the Moon " ) The Eleventh Doctor later burned up the swimming pool to get enough energy to enter the bubble universe . ( TV : " The Doctor ' s Wife " ) The pool was back in the TARDIS in its next incarnation , and Clara Oswald came across it while trapped inside . ( TV : " Journey to the Centre of the TARDIS " ) Behind the scenes . A longer scene involving the TARDIS swimming pool was cut from " The Doctor ' s Wife " because Karen Gillan couldn ' t swim . ( REF : " " )