[font color=\'#000000\']Having just returned from NW of Sault Ste Marie, Ontario...
I strongly reccomend the Lake Superior Provincial Park. We went up the Sand River area; the first 1/4-1/2 mile has lots of waterfalls, and is easy to get to.
Just south of the park area along Highway 17 is the Chippewa River; there are falls just off the highway that are sort of fun.
If you want to go to the Petroglyph's, make sure you are aware that although it is only 4-500 meters to the shore, a it seems to be another 200 meters between going up and down the rocks! It is very steep, and when you get there you will find the glyphs are on a vertical wall that actually leans out over the water, and there is about a 5-6 ft wide ledge you can climb along, that slopes down towards the water (probably a 20-30 degree angle). There are spikes near the top of this ledge you can try to hold on to...
The Agawa Canyon area is quite pretty, but the train ride would be more fun if it was an hour shorter each way. It's a full day afair, leaves promptly at 8AM and we didn't get back until almost 6PM. The falls in the Agawa Canyon park are about 175-210 ft in height.
Beware the state bird - the skeeters are out in force whenever the wind doesn't blow them away...[/font]