Many of New Zealand, and the world's, finest Sauvignon Blancs come from one flat valley floor in the north of New Zealand's south island. I spent a month based in Blenheim hand picking grapes for Montana wineries, and in my opinion by far the best way to explore this area is by bike hire. A circular tour of various cellar doors can be undertaken, with easy rides between the grape rows (between 1-2km) for each tasting session. Of particular note is Highfield Estate winery with a lovely restaurant with great views, and a climbable tower. Red wine lovers shouldn't fear exclusion because there are some lovely Pinot Noirs to taste as well as all the whites. It may not just be the exercise that gives you wobbly legs by the end of the day!
www.highfield.co.nz/profile/
www.tourism.net.nz/new-zealand/attractions/recreation/cycling-and-mountain-biking/blenheim/spokesman-bike-hire/index.html
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