Cameron McNeish celebrates the best of Scotland with a spectacular walk from the south-west tip at the Mull of Galloway to the busy ferry port of Oban. It's a journey from sea level to mountaintop, but also a personal one as Cameron weaves his way through the landscape and visits five very different islands. In the first of two programmes Cameron completes the initial half of this 250-mile route, including an ascent of the highest mountain in the Southern Uplands, the Merrick. At shore level he discovers a coastline steeped in history that spans the centuries. He sets foot on an island that reminds him of a Tibetan trek, experiences ideal conditions on Arran's Goatfell and fulfills a long-held ambition in visiting the ancient seat of the Lord of the Isles.