Vineyard Sound is the stretch of the

Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...

which separates the

Elizabeth Islands The Elizabeth Islands are a chain of over 20 small islands extending southwest from the southern coast of Cape Cod, Massachusetts in the United States. They are located at the outer edge of Buzzards Bay, north of Martha's Vineyard, from whic ...

and the southwestern part of

Cape Cod Cape Cod is a peninsula extending into the Atlantic Ocean from the southeastern corner of Massachusetts, in the northeastern United States. Its historic, maritime character and ample beaches attract heavy tourism during the summer months. The ...

from the island of

Martha's Vineyard Martha's Vineyard, often simply called the Vineyard, is an island in the U.S. state of Massachusetts, lying just south of Cape Cod. It is known for being a popular, affluent summer colony, and includes the smaller peninsula Chappaquiddick Isla ...

, located offshore from the state of

Massachusetts Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...

in the United States. To the west, it joins Rhode Island Sound, and on its eastern end it connects to Nantucket Sound. Vineyard Sound holds some of the largest summer flounder in Massachusetts.Luftglass, Manny
"Gone Fishin': Massachusetts' 100 Best Waters"
Hanover, N.H.: University Press of New England, 2008, p. 192, .

References

Bodies of water of Dukes County, Massachusetts Geography of Martha's Vineyard Sounds of Massachusetts {{Massachusetts-geo-stub