Dang, that porpoise sure has big teeth!.........
Any marine mammels near the shore are a bad sign. Sharks like to eat sea lions and dolphins and sea otters. When you see them in the line up it's time to go.
I used to surf at Anno Nuevo State Park in Santa Cruz, and when the ocean got full of the smiley happy critters you could litterally see the sharks circling. Creepy.