Put on your sneakers and get t'steppin' – walking is the way to go! You'll only need wheels to visit outlying sights along the Niagara Pkwy or if you're staying on Lundy's Lane.
Driving and parking around the center is an expensive headache. Park way out and walk, or follow the parking district signs and stash the car for the day (around $6 per 30 minutes, or $15 per day). The huge Rapidsview parking lot (also the WEGO depot) is 3km south of the falls off River Rd.