I went to the event last night at a great little travel shop in Notting Hill, where I met Tristan alng with 8 or so other people. We were given an overview of the subject & the approach taken, as well as somet background information on the author. The evening included a walk round Notting Hill where we shown a wide vairty of direction finding clues, both Natural & Manmade, which were quite an eye opener to the subject. I bought the book & can't wait to find time to read it this weekend. This is another one of those bushcraft related subjects that make you open your eyes & notice things that you would normally just filter out as not being interesting or useful. Natural navigation seems to cover a lot of ground such as trees & plant, astronomy, to noticing manmade objects such as the orientation of churces or sattelite dishes. It looks like a very useful skill to have, so I hope to get myself on one of his courses when I have read the book.