question about the ocean....

Hi guys,
Is there a point in the world where 2 oceans meet but you can see a clear line because of the salt leve/currents etc? One is light blue and one dark.
I remember Timmy Mallet on Wackaday talking about it but cant remember where it is....am I making this up?
Is there a point in the world where 2 oceans meet but you can see a clear line because of the salt leve/currents etc? One is light blue and one dark.
I remember Timmy Mallet on Wackaday talking about it but cant remember where it is....am I making this up?