Natural Navigation on Radio 4

My sailing chum Tristan was on the radio recently talking about Natural Navigation. He was on Radio 4 and very interesting it was too - the web page to hear it can be found here (not sure if it will work outside the UK so good luck).

To get an idea about the principles of Natural Navigation what you see above is a good example: it is a snow compass.

So which way is North?

To get an idea of the principles involved check out his web site here.