What's the dam or river im trying to remember, please help :)

I cant remember the exact place but there is a long flowing river you can take a tube on and float down from one end to the other where the main road would be. At that point you dr8ve a short distance back to parking lot and walk a short ways to the beginning and repeat. I think its the Pinawa dam but im not 100%. Its usually d9ne best with 2 vehicles so one can be parked at the end and the other is used to transport the driver after returning the group to the parking lot to reduce walking. Hope everyone is having a great day and GO JETS GO!!!