Niagara Adventure Pass

The Niagara Adventure Pass is a great way for tourists visiting Niagara Falls to save some money during their stay.  For C$44.95 (plus tax) you'll be able to get a combined admission pass to the Maid of the Mist, Journey Behind The Falls, White Water Walk and Niagara's Fury.  In addition, you'll get unlimited access to the Niagara People Mover bus to get you to and from every attraction.  If you're planning on hitting up these attractions anyway, getting this pass in a no-brainer.  It can be bought both online at the link above, or at any of the attractions or Visitor's Centers around Niagara Falls.