Not of sound mind: knot Free

This is the story of a father and son team who undertook the formidable task of building a yacht from scratch. Follow the hunt for materials, the innovation, adaptation and ingenuity that was necessary to construct this vessel with limited resources. The build took nine years of dogged determination and sacrifice, culminating with the launch of the yatch 'Knot Free' at Gallows Point in the Menai straights.