The Greensand Way follows the ridge of greensand rock across Surrey and Kent, to the edges of Romney Marsh and almost to the Kent coast. The Way takes its name from the layers of sandstone in each of which is found the green coloured mineral glauconite. The greensand ridge runs broadly parallel to and south of the North Downs ridge.

It traverses the Surrey Hills and Kent Downs Areas of Outstanding Natural Beauty. Excellent views can be obtained of the North Downs and across to the Weald to the South. Although much of the route passes through quiet and almost remote areas, there are links to towns providing opportunities for accommodation and refreshment. Much of the walk is accessible by public transport.