Niagara Falls is one of the natural wonders of the world. Over 34 million gallons of water spill over Horseshoe Falls every minute. To stand near it you can feel the ground shaking, and can hear its roar from blocks away. Above, a boat filled with blue raincoat clad tourists closes in on the falls.
To the left is the Canadian side and to the right the United States in the above picture. Of the two the Canadian side clearly offers the very best view of both falls.
Other than the falls, which are free to look at end enjoy, there is a vigorous tourist trade on the Canadian side, which likely morrors the American side. Every kind of bead and trinket is for sale in scores of businesses and shops. The parks along the river view in Ontario are well kept and clean, orderly even. Tourists from all over the world enjoy the views.
If you are feeling adventurous and really want to feel the power of the falls, a trip down an elevator to a series of tunnels carved behind the falls is a must. For around $15 USD you will be issued a yellow plastic rain jacket for standing near the base of Horseshoe Falls. There is nothing that prepares you for the roar and beauty of standing at the base of the falls.
What you cannot see in the below picture is a tunnel that virtually opened up to the water ...from behind the falls. You can get to within 10 feet of the water as it crashes down (and some into) the outside of the opening.