Redditor UnspeakableFilth spent much of December building an elaborate fort out of ice blocks in the backyard of his home in Northwestern Ontario. Persistent subzero temperatures allowed him to amass a huge stockpile of frozen blocks of colored water, which he then assembled into a walled fort using slush as a mortar. Once the fort was completed, he invited his friends over for an ice fort party.
photos via UnspeakableFilth