The Meeting of the Seas

Science has found that where two different seas meet, a barrier separates them, allowing each sea to preserve its own temperature, salinity, and density. You may also independently confirm it by conducting a google search.

Here's what Quran States 1400 Years ago:

Chapter: Ar-Rahman

Verse: 19-20

He merges the two bodies of water, [Quran 55:19]

Yet between them is a barrier they never cross. [Quran 55:20]