Its mouth is marked by the Dolgaya Spit on the south and the Belosaray Spit (Belosarayskaya Spit) on the north. It abounds in sandy spits that partly enclose shallow bays. The bay contains Sandy Isles (Песчаные острова). Rivers Don, Kalmius, Mius and Yeya fall into the Taganrog Bay. The major ports are Taganrog, Mariupol (Ukraine), and Yeysk. Rostov-on-Don is a few miles up the Don river.