A few hundred feet North West of Highway 11 & 117 in Bracebridge, Ontario.
Half second exposure, f11, iso 100. Sigma 10-20mm @12mm (to eliminate the edges of the filters).
I stopped by High Falls in Bracebridge, Ontario on my way back from a cottage near Algonquin Provincial Park in Autumn. It was a cloudy/rainy day which helped slow the shutter a little but I still had to use a CP filter, as well as two ND graduated filters which I slid all the way down to use as regular ND filters since I didn't have normal ND. The two ND grads together caused the purple color cast but I liked the effect. I toned it down a little in processing.