The MDI area (MDI, Swans Island, Blue Hill Bay, Frenchmans Bay, etc.) is jammed full of tourists all summer. The passages AND harbors are stuffed full of lobster traps to the point that you can't sail for a quarter mile without hitting two or three. You can't sail at night because of the traps. The restaurants are very expensive and you always need reservations three to four days in advance. Finally, the locals are surly and don't want you here.