Dougie Vipond visits the River Tay, which runs from its source in the Highlands, past Dundee and out to sea. For centuries, the Tay estuary has shaped how creative people have expressed themselves. Dougie meets author Robin Crawford, who explains the Tay's link to Shakespeare. He also visits the studio of landscape artist Helen Glassford, to find out how the silvery Tay continues to have an impact on painters today - just as it inspired the likes of pre-Raphaelite painters Turner and Millais, and Scottish artists Raeburn and Naismith, before them
