Which sea is famous for having no land coastline?

The Sargasso Sea is famous for having no land coastline.

Instead of being bounded by continents, it is defined by ocean currents in the North Atlantic. The North Atlantic Gyre surrounds it, with the Gulf Stream forming its western boundary and other major currents marking its northern, eastern and southern edges. Its boundaries shift rather than following fixed shores.

The sea is named for Sargassum, a floating brown seaweed found in large mats at the surface. These mats provide habitat for young sea turtles, fish and other marine organisms. The region also has historical connections to Atlantic navigation and stories about ships surrounded by drifting vegetation.

The Sargasso Sea should not be confused with the Bermuda Triangle, which is an informal and disputed region with no official oceanographic status. The Sargasso Sea is a recognised part of the North Atlantic Ocean defined by circulation patterns.