The members of the Marco Island Area Association of Realtors® want to make you feel at home. We are very proud of our piece of paradise and the beaches, boating and lifestyle it offers. Marco Island is the largest and the only inhabited island of the 10,000 island chain in the estuary of the Great Cypress Basin and the Everglades. It is nestled within the 100,000 acre Rookery Bay Estuarine Preserve, one of the largest and most sophisticated marine research preserves in the world. Come visit and stay awhile!