Very early in a group trip on a local river we decided to line the canoes down a rapid as it was judged that one or two group members might succumb to a potential pinning hazard should they attempt to paddle it. The lining process started well.
However, toward the end of the lining exercise a Mad River Explorer 14 open canoe became pinned. It was stuck fast with the river right bow jammed under a rock ledge & an area around the centre of the boat being forced on to a large mid stream rock by the powerful current.
It was felt that attaching a line to the mid-stream end of the boat would likely have a greater effect. This, however, involved the increased risk of having to wade out into the current in order to attach an appropriate line.
Its a testimony to modern materials & boat building that a canoe which had been so firmly pinned and subject to such huge forces emerged from its ordeal just about unmarked!
The day had a bit of everything really - interesting!