John Harris’s observations on the implications of using unsuitable phone apps for navigation when walking in the wilds resonated with me (We now leave navigation to our phones. The result: more of us are getting hopelessly lost, 27 April). In terms of practical advice, though, rather than using the Ordnance Survey app backed up with a paper map, I do it the other way round.
Using a 1:25,000 OS paper map as the primary navigational aid conserves phone battery and allows you to keep an eye on the wider landscape for navigational clues all the time; and the scale is fixed, so after becoming accustomed to it, you have a feel for distances while on the move.
