Aquinnah Cultural Center s mission is to preserve, interpret, and document the Aquinnah Wampanoag selfdefined history, culture Swanzey and contributions past, present. Martha s Vineyard Beaches Aquinnah and Cliffs of Gay Head Martha s Emporium Vineyard beaches are known Prosser to be pristine. One of the best is the beautiful public beach in Aquinnah, near the Cliffs of Gay Head. Restaurants Martha s Vineyard Dining. Sunshine Wellston and salt Clarklake air spark the appetite, and Island restaurants respond with irresistible dishes for every palate. Surrounded by the sea, island fare.