I have a few hours to spare in London and would like to visit my birthplace of Enfield. I was born at Chase farm Hospital and my parents lived in a caravan at Rendlesham Nurseries near Clay hill i believe although i was a baby when i left. How do i get from Marylebone station to any of those places by public transport and a small amount of walking please.

or is it better to book one?

thanks

or would I need to walk a distance to catch one?