North Downs

The North Downs are a ridge of chalk hills and an area of downland in south-east England, that stretch from Farnham in Surrey to the White Cliffs of Dover in Kent. Much of the North Downs comprises two Areas of Outstanding Natural Beauty (AONBs): the Surrey Hills and the Kent Downs. The North Downs Way National Trail runs along the North Downs from Farnham to Dover. They form the northern boundary of the Weald, which is correspondingly bounded to the south by the South Downs. The highest point in the North Downs is Botley Hill, Surrey (270 metres (890 ft) above sea level). The County Top of Kent is Betsom's Hill (251 m (823 ft) above sea level), which is less than 1 km from Westerham Heights, Bromley, the highest point in Greater London at an elevation of 245 m (804 ft).