The superbly remote Loch Arkaig in Lochaber, said to be the hiding place of a hoard of gold coins landed by the French at Loch nan Uamh in late April 1746 in support of the (by then already failed) Jacobite rising. More pics and info: https://www.undiscoveredscotland.co.uk/speanbridge/locharkaig/index.html