While I don't condone their actions at all, just to keep a little perspective in this, as far as I understand it turns out that the two guys actually started out in a river to set their net. It being night time they did not appreciate the extent of the flood in the river and got caught up and swept into the river mouth and out to sea.
And for the
USA forumites I can assure you, having been a frequent visitor to the US in the past, NZ rivers are little streams compared to yours. I grew up on the banks of one of NZ's largest and most navigable rivers (it also used to have the second highest flood volume ever recorded in NZ at one time, don't know if it still has though) and we used to paddle across it on anything that floated (and sometimes things that ended up not floating

). No NZ river is navigable by anything other than small boats.
The two guys remind me of what we used to do as
kids, only difference was we managed to stay in the river

. As I say, I do not condone their actions now I am grown up (well I pretend to be

) but is not as if they set off to sea so poorly equipped but were paddling within the entrance of a little river (the Tukituki as I understand it). Some might not understand, but I know that Huck Finn would

.
Was very surprised when I also saw that one claimed he could not swim - as a few forumites will know I have a very authorative source on this subject and she is also surprised as is very unusual (perhaps he meant across the language barrier that he couldn't swim far enough??? but dunno).
John