Board your coach in Picton and first travel south to Blenheim, the centre of the Marlborough wine region. From Blenheim you'll pass the vast grape growing areas as you head west towards Renwick, then through the fertile valleys and onto the picturesque port town of Havelock. Continue through the Rai Valley and over the ranges before dropping to the coast and Tasman Bay. Follow the shore into the city of Nelson.