James May's Great Explorers

The host profiles famous explorers, beginning with Christopher Columbus. He may be celebrated as a national hero for 'discovering' the USA - but he never set foot there. James starts by travelling to south-west Spain, from where these world-changing voyages began. May takes the helm of his own sailboat to test the cutting-edge sail technology that allowed ships to travel further than ever - and the rudimentary navigation techniques that Columbus had to rely on.