Sean Fletcher's walk around the Wales Coast Path reaches Carmarthen Bay and the Gower Peninsula, an area known for its peaceful estuaries, sandy beaches and limestone cliffs. At Pendine Sands he hears the story of Wales' land-speed record holder and sees his original car roar up the beach once more. Sean also tries to beat the tide and reach the end of Worm's Head, the westerly tip of Gower.