Back in the Pleistocene era, three of us kids put
two 5-horsepower Johnsons on a ten-foot wooden rowboat of mine, and camped on the Broads side of Rattlesnake Island. (Two engines for the added security in such an adventure, of course).
No docks, no camps, no campers,
no signs, no
houses!
And no rattlesnakes...dangit!
BTW: The signs stating "Private" back then...were postcard-sized.