Orkney: Britain's Green Islands with Julia Bradbury and Alex Beresford

Julia Bradbury and Alex Beresford travel to Orkney to see how these beautiful islands are making stunning progress towards a greener future. On their green odyssey, Julia finds out what a 'bere bannock' is, kayaks the beguiling waters of Scapa Flow and takes a trip on what may be the world's first hydrogen-hybrid ferry. Meanwhile, Alex plays Britain's longest golf hole, falls in love with endangered puffins and pilots a speedboat to discover revolutionary tidal turbine technology. Immersing themselves in island life, Julia and Alex also encounter Orkney's unforgettable landscape and ancient history. But it's the archipelago's resourceful people, exploiting the power of wind, wave and tide, who may well point the way for all of us towards a sustainable future.