The Scottish Highlands are Scotland's northernmost region. They include Inverness and Loch Ness, the Isle of Skye, and the towering Ben Nevis. This is the rugged part of the United Kingdom where you can unplug, sing the Skye Boat song, delight in the wilderness, and try to understand Scots and Gaelic. Loch Lomond and the Trossachs, on the boundary between the highlands and lowlands, is the stuff of postcards.