A guide to 50 wildlife walks in Essex and East London. The app draws the route on satellite maps and, as you walk round, you can pull up directions for the section you are on. Turn on your location, and you can see if you stray off the route. The walks have been chosen as some of the best in the area to see wildlife, and you can pull up information on what to look out for on each section, plus details of nature reserves, country parks and the like that the walks pass through or near. Details…