the only sea without any coasts is the Sargasso Sea. Why? Because a species of seaweed that covers the environment's water, the Sargasso Sea is the only sea without coasts or shores. It is also interpreted by FOUR ocean currents.
The Sargasso Sea Located entirely within the Atlantic Ocean is the only sea without a land boundary. Mats of free floating sargassum a common sea weed found in the Sargasso Sea, provide shelter and habitat to many animals.
