To be honest, im with Paul. Obviously in terms of whats allowed or expected, its bad out of order, and if it became common place i would be there with everyone defending the canals as a place not suitable for such speed.
However, as a one off, on a quieter bit of canal, slowing down for passing boats etc, with hard banks all round. You could do a dam sight worse in my mind And as you say, theres nothing in the clip to positively identify the boat or the people really, something they probably knew at the time. Daniel
