Walking round town I saw an adavert in a shop window for SAS Survival Training. Now I'm not going to get into Walt bashing, I don't know who runs the courses, or anything about what they teach. It does however say on the page that you can learn basic survival, fire lighting, shelter building and navigating WITH or WITHOUT maps. Maybe I'm being a bit dim but how can you navigate successfully with out a map? If you know were you are, and you know were you want to go, and you already know how to get there, surly thats just memory. I'm not having a go, I just thought maybe I'm missing a trick.