They said they knew just about every language in the world, like Santa Claus. The mermaids were annoying though. The spoke with a screeching unpleasant sound and they turned to human when they were dry. I never saw any that were dry because it was too deep down and they were all too lazy to ever swim to the top. Once again, the water, like the moon air, was breathable.
People only die in water because of the currents.
They don't really drown. Ocean Currents sting you and parellize you like the sting of an electric eel. Where I landed, was too deep for ocean currents. That's pretty deep. It was probably the deepest part of the ocean.