 Waterfall Gully is an eastern suburb of the South Australian capital city of Adelaide . It is located in the foothills of the Mount Lofty Ranges around 5 km ( 3 @.@ 1 mi ) east @-@ south @-@ east of the Adelaide city centre . For the most part , the suburb encompasses one long gully with First Creek at its centre and Waterfall Gully Road running adjacent to the creek . At the southern end of the gully is First Falls , the waterfall for which the suburb was named . Part of the City of Burnside , Waterfall Gully is bounded to the north by the suburb of Burnside , from the north @-@ east to south @-@ east by Cleland Conservation Park ( part of the suburb of Cleland ) , to the south by <unk> West , and to the west by <unk> Gardens and Mount Osmond . 
