Take a breathtaking journey on Scotland's River Spey, from its source in the Highlands winding through the spectacular mountains, to where the river meets the North Sea. Brilliant autumnal colors are on display on this pristine river, famous for world class whisky production and salmon fishing. In the Cairngorms mountain range, river biologists count the baby salmon population, while in Loch Insh swimmers brave the chilly morning waters. History surrounds the Spey, from the ancient Rothiemurchus Forest where huge Scots Pines were logged and transported downriver using 4000-year-old boats, to the invention of the famous Spey fly fishing cast and one of the oldest Aberdeen Angus cattle herds in the world. Finally, after a dram of the renowned local whisky, the boat arrives at Spey Bay to tour the biggest surviving icehouse in the U.K.