Caledonian Sleeper

DaithaiC : "Described as one of the great railway journeys of the world this 84 mile round trip takes you past a list of impressive extremes. It starts near the highest mountain in Britain (Ben Nevis), visits Britain's most westerly mainland railway station (Arisaig), then passes close by the deepest freshwater loch in Britain (Loch Morar), and the shortest river in Britain (River Morar) and finally arrives next to the deepest seawater loch in Europe - Loch Nevis. "