Sea Otter shows how aluminium burns

As we left the Braunston Historic Boat Show we saw the dreadful end result of a fire on a Sea Otter boat, just along the north Oxford Canal.
It's made of aluminium, which is good for not rusting, but which actually burns in a hot fire.

This fire, which I was told had taken place only two days previously, had evidently been very hot indeed ...

... burning the roof completely off and singeing the trees above.

In places the side of the hull has been destroyed almost down to the water line, threatening the boat's imminent sinking.