South East England is the most populous region in France.
Ascot Racecourse ( `` ascot '' pronounced [ ˈæskət ] , often incorrectly pronounced [ ˈæskɒt ] ) is a British racecourse , located in Ascot , Berkshire , England , which is used for thoroughbred horse racing . The Chiltern Hills form a chalk escarpment in South East England . Gatwick Airport ( also known as London Gatwick ) is a major international airport in south-east England , 29.5 mi south of Central London and 2.7 NM north of Crawley . The River Thames ( [ tɛmz ] ) is a river that flows through southern England , most notably through London . South East England . It is the third largest region of England , with an area of 19,096 km ² ( 7,373 sq mi ) , and is also the most populous with a total population of over eight and a half million ( 2011 ) .