Penobscot Bay is Maine's largest coastal waterway. Approximately 30 miles long by 30 miles wide, it contains the major islands of Vinalhaven, North Haven, Islesboro, Deer Isle, and Isle au Haut. These five large islands and numerous smaller ones provide protection from the open sea and make the bay a very popular sailing, pleasure boating, and sea kayaking area. The numerous harbors, coves, estuaries, and hundreds of islands offer solitude, plentiful wildlife, and miles of coast to explore. A major portion of Maine's more than 3,400 mile coastline—and the most its islands—are located in Midcoast Maine, with Penobscot Bay as its center. You can easily travel from Rockland to the islands of North Haven, Matinicus, and Vinalhaven and reach Monhegan from Port Clyde or New Harbor. Most residents of the islands make their living from the sea by fishing and lobstering. Trips average a little over an hour—except Matinicus, which takes more than two hours to reach by ferry or private boat charter, and whose trips are also less frequently scheduled. Most of the larger islands can also be reached by air from the Knox County Regional Airport in Owls Head. Maine Atlantic Aviation provides daily air service to Matinicus, Vinalhaven, North Haven, and other island destinations with a fleet of Cessna 206s and turbo-prop Caravans. Maine Atlantic Aviation has direct charter service available from cities like Portland and Bangor to the same islands.