The body of water that contains the island of Madagascar is the Indian Ocean. Madagascar, the fourth largest island in the world, is situated off the southeastern coast of Africa and is renowned for its unique biodiversity, including species found nowhere else on Earth. The surrounding waters of the Indian Ocean influence the island's climate and ecosystems. Additionally, Madagascar's rich cultural heritage, consisting of diverse ethnic groups and traditions, adds to its significance, making it a point of interest for travelers and researchers alike.