I have long been fascinated about the ancient navigational methods of getting from one point to another.
The ancient Polynesia sailor could read waves giving them a roadmap of where they were but they also found that the best way of reading subtle changes in the sea was to use something very sensitive.
I would not suggest you try this on your next sail but they used to rest their testicles on the stern post as they could pick up slight variations in the sea easily.
Have you heard of any unusual navigational methods?
