Which sea was immortalized by Jules Verne in his novel "Twenty Thousand Leagues Under the Sea"?

A sea such as the Sargasso Sea has become the stuff of myths; it was immortalized in Jules Verne's "Twenty Thousand Leagues Under the Sea" (1870). Some literary critics and fans noted in news media that the Sargasso Sea was given a special air of mystery and magic in Verne's novel. They found that it was not hard to understand why Verne decided to write about this sea.

Tucked in the North Atlantic Ocean, the Sargasso Sea is bounded by four currents to create the only sea that has no land boundaries. Also the sea is distinguished from other parts of the ocean by its brown Sargassum seaweed and calm blue water. Plus it is the closest landmass is Bermuda, which lies on its fringes. The ocean water in the Sargasso Sea is different and is especially known for its deep blue color and exceptional clarity. Verne as a writer was quick to point to these characteristics.