He slowly moved past me, checking the shore in case of chasing fish here. This is common and I have wondered what they are thinking when we look right at each other.
Just as amazing is to watch a 1,400 lbs (635 kg) Dolphin gently slip under water and how they move it like it was solid matter.
When finally under there are nothing but small ripples. This is why it is so hard to see a Dolphin and figure where they might rise up again.