Trevor Cochrane and Christina Morrissy continue their amazing trip in New Zealand, taking one of the world's most scenic train journeys, from Christchurch to Greymouth through the Southern Alps, enjoying the views of snow-capped mountains and other breathtakingly beautiful scenery on the train. There are so many adventures to be had in South Island - from exploring the Punakaiki pancake rocks and blowhole, to visiting the Hokitika Gorge to see the most amazing azure-blue coloured river, taking a helicopter ride to the remote Sibera Valley at Mt Aspiring National Park - admiring the towering ice covered mountains and glaciers.