The river is from sulphate with darker color, and there were trees in the edge of the river. it,s also have different salinity. The shallower sea the water had no salinity, just fresh water, and the deeper is saltier. like there was a wall separate them.
there's a quote saying, *These amazing pictures were taken by the professional diver Anatoly Beloshchin in the cave Cenote Angelita, Mexico. Heres his description: We are 30 meters deep, fresh water, then 60 meters deep salty water and under me I see a river, island and fallen leaves Actually, the river, which you can see, is a layer of hydrogen sulphide. It must be an unforgettable feeling once youre there and see it with your own eyes.
Besides diving in fiji, diving cenotes in mexico is one of the most intense experiences you can ever have. the trippiest part is that when you dive in the caves, you will start at the top which is usually warmer saltier water (wait, i might be mixing this up) from the ocean, and as you go down you pass into colder fresh water. its a weird sensation, made absolutely trippy by the fact that where the barrier between the two is there is a crazy mixing effect that makes you feel like the cave is melting around you. its fun to stick your head right in the middle. let me see if i can find a link on youtube... here*
Subhanallah that make all out of our think of beautiful comes true.
like They Said in the Quran.
"He released the two seas, meeting [side by side]; between them is a barrier [so] neither of them transgresses." (Q.S. Ar-Rahman verses 19-20)