The only sea in the world with no coastline, its name is...

The only sea in the world with no coastline is the Sargasso Sea, a unique region in the Atlantic Ocean defined entirely by ocean currents instead of land boundaries.

The only sea in the world with no coastline is called the Sargasso Sea — Image credit: Wikimedia commons

The only sea in the world with no coastline is called the Sargasso Sea.

They create a circular system that acts like an invisible boundary.

It is a unique part of the Atlantic Ocean where you can travel for days without seeing land — Image credit: Pexels

It is a unique part of the Atlantic Ocean where you can travel for days without seeing land.

Together, these currents surround the sea without any land borders.

Unlike other seas it is not surrounded by continents or coastlines — Image credit: Pexels

Unlike other seas, it is not surrounded by continents or coastlines.

The North Equatorial Current forms the southern limit of this sea.

Instead it is bordered by powerful ocean currents — Image credit: Pexels

Instead, it is bordered by powerful ocean currents.

The Canary Current defines its eastern boundary with cooler waters.

These include the Gulf Stream North Atlantic Current Canary Current and North Equatorial Current — Image credit: Pexels

These include the Gulf Stream, North Atlantic Current, Canary Current, and North Equatorial Current.

The North Atlantic Current helps shape its northern edge

These include the Gulf Stream North Atlantic Current Canary Current and North Equatorial Current 1 — Image credit: Wikimedia commons

These include the Gulf Stream, North Atlantic Current, Canary Current, and North Equatorial Current. (1)

The Gulf Stream forms part of its boundary with fast-moving warm waters.