This is the law of Nova Scotia:
NS Statute of Limitations Act

32 No claim which may be lawfully made at the common law by custom, prescription, or grant, to any way or other easement, or to any watercourse, or the use of any water to be enjoyed or derived upon, over or from any land or water of our Lady the Queen, her heirs or successors, or being the property of any ecclesiastical or lay person, or body corporate, when such way or other matter as herein last before mentioned has been actually enjoyed by any person claiming right thereto without interruption for the full period of twenty years, shall be defeated or destroyed by showing only that such way or other matter was first enjoyed at any time prior to such period of twenty years but, nevertheless, such claim may be defeated in any other way by which the same is now liable to be defeated and where such way or other matter as herein last before mentioned has been so enjoyed as aforesaid for the full period of twenty-five years, the right thereto shall be deemed absolute and indefeasible, unless it appears that the same was enjoyed by some consent or agreement expressly given, or made for that purpose by deed or writing