That's a good video to watch - scary too! It absolutely makes the case for life jackets at all times.
One think I hadn't considered, although it's obvious, is that hyperventilating prevents you from being able to hold your breath. I really hadn't thought about this.
It makes me realise that I wouldn't stand a chance without a jacket.
Last year i ended up in the water in the Harbour, when i missed my Tender. 27 c outside, straight in water, glad i had life jacket on! the cold shock i was gasping for breath, was eye opener...
