Shovels had to be deployed to clear walkways at the Ptarmigan restaurant on Cairn Gorm, while hillwalkers had to put on extra layers of clothing as a blizzard descended on the peaks, temporarily hiding the views.
But the good news is the plunging temperatures and snowy flurries on the hills are not here to stay.
A Met Office forecaster said that while the temperatures dropped below freezing in the Cairngorms, the mercury is set to rise again temporarily.
He said: "There was a strong northernly wind that turned the rain to snow at the top of the Cairngorms, but we can see snow up there at any time of the year.
"Temperatures at Munro level (3000ft) dropped to freezing, but the next few days should see a good deal of dry weather, especially in the west of the country.
"Over the next few days an area of high pressure will come in and that should be the end of the snow."
Temperatures across Scotland will remain about 12°C (53°F) and should climb slightly during the days ahead.