Narragansett Bay is a coastal body of water next to southern Rhode Island. It is on the north side of the Rhode Island Sound. The bay forms New England's largest estuary.
There are over 30 islands in the bay. The three largest ones are Aquidneck Island, Conanicut Island and Prudence Island.
Providence, Rhode Island's capital and largest city, is just to the north of Narragansett Bay. Newport is on the southeast side of the bay.