To visit Niagara Falls in 2026, your requirements depend on whether you are staying on one side or crossing the border. If you plan to visit both the New York (USA) and Ontario (Canada) sides, you absolutely need a valid passport, Passport Card, or Enhanced Driver’s License to cross the Rainbow Bridge or Lewiston-Queenston Bridge. For the actual experience, the most essential physical item is a high-quality waterproof phone pouch and perhaps a change of socks. Even if you use the provided ponchos on the Maid of the Mist (USA) or Niagara City Cruises (Canada), the "mist" is essentially heavy rain that can ruin electronics and soak through shoes. You also need a timed-entry reservation for popular attractions like the Journey Behind the Falls or Cave of the Winds, as 2026 crowd management systems have made "walk-ups" rare during peak summer months. Finally, if you are driving, ensure you have a mobile payment app or credit card ready, as most parking lots around the falls have transitioned to completely cashless, app-based payment systems.