Ice formations on the main falls - the entire falls is frozen, the falling water underneath completely encased in ice. I've only seen it like this once before.
The other side of it is that once you load it into a photo-editing program like Lightroom, you can't edit it, and it shows up only as a video. Luckily I figured out quickly how I could turn this useless little feature off! And I went back today and got some 'real' photos which I'll share with you tomorrow.