Almost. Whilst the trespass is a breach of civil law the canoeists action could be seen as a breach of Section 5 of the Public Order Act 1986;
This offence could result in a person being arrested or dealt with by a Fixed Penalty Notice (£80 fine) if appropriate.
There is also the Protection From Harassment Act 1997:
Oh. And you forgot to mention:
4A) The violence threatened by canoeists to anglers who take issue with the canoeists unlawful actions.
Depending on which side of the fence you sit the act of paddling a river may be trespass.
Everything else you mention would depend on the behaviour of the person while they were paddling.
Many people are capable of paddling without committing any of these offences, those that do commit them should be prosecuted, regardless of what the law says on navigation.
I would also apply that to the few anglers who threaten physical harm or damage to property towards paddlers.
However strongly we disagree on the PRN, breaking the criminal law isn't going to solve the problem.
---------- Post added at 14:29 ---------- Previous post was at 14:21 ----------
No.
It just shows you haven't digested one single word of advice from our poster Windy.
To correct your summary -
1. Anglers KNOW you are committing an act of Trespass when you canoe any waterway where there is no PRN.
2. Canoeists may think they have the right to paddle anywhere, but then some people believe in the creationist theory. Both are fools.
5. Read back over Windy's posts and try to learn something.
I have digested every word of Windy's posts on this thread, and he has not shown conclusively that the PRN doesn't exist.
He has made some effective arguments against parts of the pro PRN navigation argument. And he has said that he will write a full response to the pro PRN argument, but until he produces that your case is a long way from proven.
Even if Windy does produce a good case for the anglers/landowners no PRN group, it does not prove he is definitely right. No matter how good he is, he can't have won every case he has worked on, and so like the rest of us must be liable to be wrong at least occasionally.