A likely story.
Smart money is on Ancient Aliens. But I am always pulling for Interdimensional Bigfoot.
This is deep tradition. My brother is currently running through this cycle with an old Grumman canoe. His two year old is a little too into it. So we told her cool kids wear pants, and only cool kids can use the boat. That seem to have kept her from trying to climb into it alone. Instead she shows up bare assed wearing a life preserver and shouts “boat!”.