The American and Canadian sides of Niagara Falls are physically separated by the Niagara River, which is only a few hundred yards wide at the falls themselves. However, to cross from one side to the other, you must use the Rainbow Bridge. The walking distance from the American observation point (Niagara Falls State Park) to the Canadian side (Queen Victoria Park) via the bridge is approximately 0.8 miles (1.3 km) and takes about 15 to 20 minutes on foot. If you are driving, the distance is similarly short, but the travel time depends entirely on border crossing queues, which can range from 10 minutes to over an hour during peak tourist season. While the two sides are geographically very close, remember that you are crossing an international border, so you will need a valid passport or appropriate travel documents to make the trip.