Raynes Park is extremely well-placed for both city and country. The overground train line will drop you in Waterloo in 20 minutes, or change for the underground at Vauxhall to whisk you elsewhere in the city.
For a quick escape, beautiful countryside such as the New Forest, Dorset or even the West country are all easily accessible from the M3 or the M25, both within 20 minutes of Raynes Park.
Gatwick Airport is less than 40 minutes away by car, or if you want a day by the sea you can be on Brighton beach within 90 minutes.