pretty freaky, glad you are ok.
I've had a scarry experience at halls bay too. In my opinion it was much better many years ago before the boaters cut away the giant downed tree on the left side of the main channel of halls bay. They also opened up the back side at that time so the motorboats could get through.
It was much better for canoes before then, there was an enormous volume of river going down the main channel, it was much safer and really fun.
I still wear chest waders when it's cool out in my canoe but I always wear a good safety belt around the waist too so they can't fill with water quickly.
Not so long ago my son and I were sleeping around little hurricaine creek when in the middle of the night I noticed the tent was filling up with water. By the time we realized the river was quickly rising some of our gear had floated away, never to be found. We had to put everything in the canoe and tie to a tree until daylight.
I have tremendous respect for the river.
Roy