Is Niagara Falls frozen in winter?

No, Niagara Falls does not fully freeze solid in winter. The water flow is too massive and fast-moving to turn into a solid block of ice. What you see is a lot of spray and mist freezing on the rocks, railings, and trees, creating a beautiful icy landscape, and sometimes huge ice formations called "ice bridges" pile up at the base. But the actual falls themselves are still flowing, just with a lot of ice crust around the edges.

If you come in January or February, you'll get the best winter views, and the Niagara Parks Commission keeps the pathways clear. The big draw is the "Winter Festival of Lights" (free, runs to mid-January) and the Niagara SkyWheel (around $15 CAD per person) for a frozen overview. Dress in layers with waterproof boots and a face mask—the wind off the falls at -15°C feels brutal. The boat tours (Maid of the Mist / Hornblower) are shut down until April, but the Journey Behind the Falls is open year-round (about $24 CAD) and lets you see the ice up close. Just don't expect to see a solid frozen curtain of water—that's a myth.