The largest inhabited island in Maine, Vinalhaven has 1,200 residents. It's nearly 8 mi long by 5 mi wide and is mostly wooded. At one time the granite industry was booming here, but the quarries are now mostly used for swimming and fishing. Many islanders work in the lobster-harvesting business. They even have a special season when they can gather lobsters while those on the mainland cannot (to compensate them for living on an island).
Most of Penobscot Bay's islands have infrequent ferry service, or are totally uninhabited. Vinalhaven, however, is relatively accessible—relatively being the key word here. There are six ferry trips per day to and from Vinalhaven in summer. The Maine State Ferry Terminal is right in the center of Rockland, on U.S. 1, across from the Navigator Motor Inn. The ferry runs throughout the year (except on major holidays), but the times change somewhat from the end of October through December, so it's best to call first. Ferry service to North Haven and to Mantinicus, a small island 23 mi from Rockland, is also available.
These old ferries are very minimal in their amenities. You won't find a restaurant, snack bar, lounge, or even a vending machine.
The village of Vinalhaven is small and easy to explore. There is a designated walking path on the north side of Main Street that runs from the ferry terminal to the center of town. Within a 1-mi radius of the ferry dock you will find two town parks and a nature conservancy area. There is only one road on the island, so it's pretty easy to find your way around. Biking the island can be fun, though there are no designated bike paths and the road can be a little rough outside the village. There is no public transportation on the island.