Yes, you can absolutely walk into Canada from the United States at Niagara Falls via the Rainbow Bridge. This pedestrian-friendly bridge is open 24 hours a day, 365 days a year, and offers one of the most spectacular views of both the American and Horseshoe Falls. To cross, you must pay a small pedestrian toll (as of 2026, it is $1.00 USD or $1.25 CAD), which is typically paid at a turnstile—it's wise to bring quarters. You must carry a valid passport or an approved travel document (like a NEXUS card for members) to clear customs on the Canadian side. The walk itself is approximately 0.3 miles (about 500 meters) and usually takes 5 to 10 minutes, though you may spend longer stopping for photos. Once you reach the Canadian side, you will enter the CBSA (Canada Border Services Agency) processing area. Remember that while walking is easy, you are still crossing an international border, so you will be questioned about your stay and any goods you are bringing into the country.