It might be a lot easier to cross to the US side then to get back. In normal times, I figure there is someone you’d contact on the San Juan Island
In a trip report to Race Island, Alex dug deeper into the “not stopping” rule for over and back. It appears the intent of that rule - and made more specific in the French version - was to allow “transition” through Canadian water. For example, passing through on the way to Alaska. leaving from A, going to B, and returning to A is not “transitioning through”.
My plans for Canadian adventure will probably be put off until summer 2021.
So Canada, understandably, doesn’t want people coming from the USA right now. I’m guessing you would be allowed back in your own country - but there might be a fine and/or quarantine period involved.
In the past, you had this:
"Canadian Border Boat Landing Permit (I-68) applicants for admission into the United States by small pleasure boats are inspected and issued an I-68 permit for the entire boating season. The I-68 permit allows boaters to enter the United States from Canada for recreational purposes with only the need to report to CBP by telephoning in their arrival."
Details found here:
pleasure-boat-overview
But why poke the bear (or pull on the maple leaf). Now is not the time for international travel.