As part of the Discovering Britain series, The Royal Geographical Society (with the Institute of British Geographers) has published the Hackney Edible walk as a self-walk with audio guide and map.  

To make the walk free-standing, the RGS recorded baby voice narrating the walks, together with either an interactive map (smartphone) or a printed Mao of the route. 

The text below forms back of the introduction

“Picture a city. Are you thinking of tower blocks and housing estates, shopping malls and superstores? Or are you thinking of gardens, allotments, orchards, vineyards and beehives? This walk in Hackney explores an unexpected aspect of city life – growing food. Discover vegetables, fruit and herbs growing in marginal spaces. Find out about the people who are transforming unused land where they live. Also, explore the potential for urban food production and creating a more sustainable way of living in cities. This walk is best in the late spring, summer and early autumn.

You can follow the walk yourself by clicking on this link.