Scotland's oldest distillery, Glenturret was established in 1775 on the banks of the River Turret. Visitors can see the milling of malt, mashing, fermentation, distillation, and cask filling, followed by a free "wee dram" dispensed at the end of the tour. Guided tours take about 25 minutes and leave at frequent intervals -- sometimes as often as every 10 minutes when there's a demand. This can be followed or preceded by a 20-minute video, The Water of Life, which is presented adjacent to a small museum devoted to the implements of the whisky trade.