Quran on the Barrier Between Seas
Allah says:
(And it is He Who has let free the two seas (kinds of water): this is palatable and sweet, and that is salty and bitter; and He has set a barrier and a complete partition between them.) (25:53)
The fact that the water of the oceans do not mix with each other, has only been discovered lately by oceanographers. This is due to the physical force called "surface tension"26; therefore, waters of neighboring seas do not mix. It is caused by the difference in the density of their waters; surface tension prevents them from mingling with one another, just as if a thin wall were between them. The Amazon River's water pours into the Atlantic Ocean and yet preserves its traits even after it goes out 200 meters in the Ocean.
Another is staring at the ocean
The voice of the sea speaks to the soul. The touch of the sea is sensuous, enfolding the body in its soft, close embrace
