London boasts more parks than it has districts and 'green' is the key word. When people think of the city they mostly likely utter art, theatres and shopping. No trip to the capital however is truly complete without the abundance of verdant spaces once outside City, Bank and Whitechapel. To sample some English culture glide through a fête, glance at romancing couples with their picnic hampers and watch cricketers bowling out their opponents to shouts of "Howzat!"