BBC Countryfile magazine
BBC Countryfile also recommends Mark Reid's 2-day navigation courses in the Yorkshire Dales. Here's what they say...
Create your own countryside routes
Team Walking offer two-day walking courses in the Yorkshire Dales allowing participants to learn the basic map and navigation skills along with hill safety and access, whilst gaining either bronze or silver National Navigation Award Scheme (NNAS) levels. After completion you will be able to plan and follow your own walks in the countryside.
BBC Countryfile website: http://www.countryfile.com/navigation
TeamWalking website: http://www.teamwalking.co.uk/navigation_skills_weekends.html