Block Island Sound is a body of water located between Block Island and the mainland of Rhode Island. It connects to the Atlantic Ocean and serves as an important navigational route for boats and ferries traveling to and from the island. The sound is known for its scenic beauty and diverse marine life, making it a popular spot for fishing, boating, and wildlife observation. The surrounding area features coastal landscapes and is part of the larger Narragansett Bay ecosystem, which supports various species of fish and birds.