If you take james street in Elora and follow it to the parking lot, you can access the stairs to river right on the irvine over by where they practice rappelling etc in the summer. In the summer time you can use it to bring your boats down and put in from that side of the river as opposed to the opposite side (of the grand, the irvine is just a trickle in the summer).
That particular video was taken on that little clay ledge that sticks out underneath the bridge. I haven’t paddled the irvine so im sure there are lots of people here that could give you the exact location better than me. I have some other videos of down river etc.