Spier?s winemakers have their pick of grapes grown across the diverse terroir of the winelands, giving them space to play and to dream up whole new ranges ? like the newly released Seaward wines aiming to showcase the ?perfect storm? of cool coastal climate growing. Cellarmaster Frans Smit says grapes from South Africa?s prime coastal growing areas ? Darling, Durbanville and the southern side of Stellenbosch ? exposed to cooling afternoon sea breezes in summer, ripen slower, resulting in conc…