I've been wanting to see New Post Falls up in the Abitibi Canyon for awhile now, but it is so remote I have never found the time. Now I have.
To get to New Post Falls is a bit of a challenge. First you have to drive to Smooth Rock Falls, which is nearly 800km from the GTA. Then, 80km North to the ghost town of Fraserdale where you cross the Abitibi Dam. From there it is 20km of gravel road, and then 10km of a very narrow path with one flooded spot due to a beaver dam, and one hill with some washout -- if you drive a car/truck down this path, it will get scratched from tree branches, and you'd better have a 4x4 to make sure you get through the water and the washout. CAA won't be rescuing you here. We were on dualsport motorcycles, so no problems. We saw tracks from a bicycle, so that is another option.
From the end of the 10km path, you have to hike about 500m down through the forest where you reach the river edge and can view New Post Falls:
This river view was from the 20km gravel road section: