Come visit Lake Ontario sometime.
we have an area with almost 2,000 islands all grouped together.
https://en.wikipedia.org/wiki/Thousand_Islands
Some are small, others a pretty decent size with multiple homes on them (Wolfe island).
I've lived on the coast of lake Ontario most my life.. I enjoyed reading your post as it put things in perspective. Normally Lake Ontario is just sort of there, i ride my bike 80KM along its shores every other day..
I guess some lakes do not have 1,146 km or shoreline?