From pirates' hoards and shipwrecked booty to dazzling gems to precious metals, Ellie Harrison and Dallas Campbell journey to the far corners of the globe in search of some of the most extraordinary and elusive gems and precious metals.
This series explores five of Britain's most extreme winter landscapes, looking at the conditions that challenge both the wildlife and people that try to survive in the countryside and uncovering a world few get to see.
Ellie Harrison looks at British mountains as she reveals the surprises this terrain holds, from volcanoes to avalanches, frogs attempting to spawn to the small h...