kempton park racecourse is a horse racing track together with a licensed entertainment and conference venue in sunbury-on-thames, surrey, england, 16 miles south-west of charing cross, london and on a border of greater london. the site has (0.85 km²) of flat grassland surrounded by woodland with two lakes in its centre. its entrance borders kempton park railway station which was created for racegoers on a branch line from london waterloo, via clapham junction.