Original: Martha's Vineyard (Wampanoag:) is an island (including the smaller Chappaquiddick Island) off the south of Cape Cod in New England, known for being an affluent summer colony. The islands both form a part of the Outer Lands region.
Simplified: Martha's Vineyard (adjoining the smaller Chappaquiddick Island) is an island off the southern coast of Cape Cod, both forming a part of the Outer Lands region.