Mike Smithson finds some very good reasons to head off the highway and visit the friendly little town of Greenock. This hamlet is one of the Barossa Valleys best kept secrets - just a 'champagne cork pop' off the main highway from Nuriootpa. Steeped in history, it gets its name from the green pastures of Scotland, but there's a whiff of new and exciting times in the air. Mike checks out the Murray Street Vineyards, the Barossa Brewing Company and the Greenock Creek Tavern.