to me it seemed that lockdown 2 was an escalation of the tier system, so more restrictive.
Since travel between tiers was actively frowned upon under the tier system, especially if you were in a higher tier travelling to a lower tier destination, how could it possibly be seen that lockdown 2 allowed unrestricted travel between tiers for recreational purposes. all of the guidance I have seen that pointed to the new regulations sent me to a government page that said travel for recreational spaces was a local thing 'travel to a local outdoor space' i think was the wording. the exemptions for that were professional athletes travelling to coaching (one to one).
so unless you are a professional athlete at motor cruising I dont see how you expect to travel to use your boat unless you live locally. the law doesnt give distance limits because it was allowing for the professional athletes travel.
the law is the law, but the guidance is important too, when we drive we follow the highway code (or should anyway) to tell us how to behave when arriving at roundabouts etc - the law doesnt say you must drive clockwise around a roundabout, thats dictated by the highway code, yet if you fail to follow that and drive the wrong way around the roundabout, you will be prosecuted for dangerous driving - because you didnt follow the guidance.
So here we have the barrack room lawyers insisting that the law says you can drive as far as you like., when the guidance is as clear that you should travel to a local open space. and avoid travelling at all whenever possible.
OK so we only have a few days to go, and then may be back under the tier system, and you are complaining that under that you might not be able to travel to your boat, well in reality you shouldnt be travelling anything but locally to it anyway.