Willem Dafoe is one of my favorite actors and yes ice fishing is a big sport in Maine. However the milder winters due to global warming may make the sport obsolete.
I live in the interior of the state- Auburn. My sister and her husband live on an island 8 miles offshore- they fish for lobsters and boy it is a beautiful locale. It is a bit isolated as you must take a ferry or have a boat to get there. It is a great place to practice Chi Kung with the clean air and ocean surrounding you. A great locale to pracitce Tummo in the winter if you know how ( I don't).