I know that stream or river beds are crown land. I use to have to use them while electrofishing for the MNR. Even though it was legal for us to be there we still let the surrounding land owners know about it. They would often just let us walk through their property.
That's true of navigable waterways, but not true for non-navigable waterways.
I spent over twenty years as a senior technologist in a land surveyor's office, and dealt with situations like this many times. The best advice I can give anybody with problems like this is that before you do anything else, you need to look at the title documents at the land registry office. Every situation is unique, the rules change province to province, and from one area to another within a province. Have a talk with a local Land Surveyor, they will have knowledge of the area, and can often provide you with the answer you need for little or no cost. For sure they are a lot cheaper than going to a lawyer, and have a much better knowledge of this sort of thing.



















































