Hmmm....last time I went to Goldhawk Rd a lot of the shops had closed. It is an experience, though, so if you have half a day you should go. Some of the shops are like jumble sales, masses of rolls stacked on end so quite difficult to see what's what. Some are very well organised & very helpful. I remember one had whole goat and sheep skins in a rainbow of colours. Another, beloved of fashion students, had feathers (real ones) stitched onto fabric and all sorts of other exotic fabrics. The Westfield centre is a short walk away so maybe leave the family in the cinema there!