Martha’s Vineyard, an island 4 miles (6 kilometers) off the southeastern coast of Massachusetts, is a popular summer resort. Vineyard Sound separates it from the mainland. The island covers about 100 square miles (260 square kilometers). Its attractions include a mild climate, beaches, fishing, shopping, and yachting. About 20,500 people live on the island. Explorer Bartholomew Gosnold named the island for his daughter and for the grapevines he found there in 1602.