▁forming ▁the ▁traditional ▁boundary ▁of ▁St aines - up on - Th ames ▁first ▁with ▁Stan well ▁then ▁with ▁Ash ford . ▁ ▁It ▁then ▁from ▁east ward ▁turns ▁south ward ▁and ▁forms ▁the ▁boundary ▁of ▁Little ton ▁( specific ally ▁the ▁Queen ▁Mary ▁Res er voir ▁followed ▁by ▁She pp erton ▁Studios ) ▁on ▁its ▁east ▁then ▁north ▁bank . ▁ ▁On ▁the ▁other ▁bank ▁is ▁L ale ham ▁where ▁it ▁turns ▁east ward ▁for ▁the ▁rest ▁of ▁its ▁course ▁- ▁however ▁for ▁almost ▁ ▁the ▁south ▁bank ▁becomes ▁She pp erton ▁Green ▁which ▁is ▁developed ▁right ▁up ▁to ▁the ▁urban / sub urban ▁re - cent red ▁and ▁ret ract ed ▁village ▁of ▁Little ton ▁on ▁the ▁north ▁bank . ▁ ▁The ▁large ▁Sun bury ▁G olf ▁Cour se ▁in ▁Upper ▁Hall if ord , ▁then ▁a ▁rural ▁Green ▁B elt ▁part ▁of ▁Sun bury - on - Th ames ▁proper ▁replace ▁its ▁north ▁bank . ▁ ▁In ▁the ▁far ▁east ▁of ▁She pp erton ▁it ▁joins ▁the ▁River ▁Th ames , ▁flow ing ▁g ently ▁into ▁the ▁Creek , ▁( a ▁secondary ▁we irst ream ▁of ▁the ▁Th ames ) ▁facing ▁a ▁long ▁resident ial ▁island ▁named ▁Whe at ley ' s ▁A it . ▁It ▁is ▁priv ately ▁owned ▁and ▁forms ▁a ▁feature ▁in ▁par ks , ▁far ms ▁and ▁end ▁of ▁gard ens . ▁ ▁The ▁five ▁urban ▁cent res ▁in ▁the ▁bor ough ▁are ▁a ▁minimum ▁of ▁ 5 0 0 m ▁from ▁the ▁river ▁and ▁three