Ice and Granite - Muskoka Ontario Canada Posted for Otter's Daily Minds Game - Today's theme is: Rock January 7 is "Old Rock Day" and if you've never heard of it then maybe you've been living under one all this time. To be fair, very few have ever heard of this unofficial holiday. I only learned about it today. I also learned that nobody knows its origins or how long its been around. It's surprising nobody has tried carbon dating it. Apparently Old Rock Day is for celebrating all things geological, however for the daily theme, feel free to interpret "rock" anyway you like. #myphoto #Canada #winter #ice #rock