Underwater footage of a real and natural river. Very clear. Green, blue and turquoise colors can be seen in the depths of the water. This is a wild river deep in the forest. Morass sedge marsh quicksand dive diving bog quagmire fen mud clay slosh dirt nature aspersion calumniation cove inlet armlet documentary arm seaweed stream creek brook rivulet run runlet alga hydrophyte lichen lagoon immersion dip scuba plants plant small linn channel river discharge still stagnant standing slack giant algae covered have aquatic wave seabed lakebed turquoise shallow.