Every area of urban green space has it’s own particular history. However, in a general sense, it’s probably true to say that the reason for a specific site’s continued existence will be one of three: it’s a cherished survivor, it’s hung on by chance, or it’s been deliberately created in a spot that was previously home to something else.
The best way to approach London, according to Jonathan Raban at least, is from the north. You should drive down via Archway to take in the fabled Dick Whittington hillside view of the city and descend deeper within, until you reach the river Thames, where London’s full glory will hit you.
My own arrival was rather prosaic by comparison: a dull coach journey up the M4 from Bristol, which ended up amid the traffic at Hyde Park Corner