For all intents and purposes, yes. The water was flowing underneath in recent weeks, but all visitor saw was ice: bulging at the top and bottom of the falls and cascading in crystalline sheets in between. Normally we wouldn’t suggest skipping off to experience a polar vortex first-hand, but this is a once-in-a-lifetime sight that won’t last long, and it looks pretty spectacular. slate.com
Be prepared for arctic cold, and visit niagarafallstourism.com for tips on where to stay.