Many years ago we drove the bus to the Canadian side of the Falls. We were able to park the bus about a 3/4 of mile away from the Falls in a bus parking lot. The following website http://www.niagaraparks.com/plan/parking.html provides information about RV parking. Parking for RV's is $10 but is only available on weekdays between June 26 and Labor Day and on weekends before from Easter to mid-June. They even have a shuttle bus to take you to the Falls even though it is a nice walk along the river.