Was at the beach on Sunday, chilling with my wife under the umbrella, and we spotted a big shadow cruising along the shoreline. I grabbed my mask, and ran down the beach for a bit, and swam out ahead of it's path to try to watch it swim by without spooking it. It was a beautiful, very thick eagle ray, and after it glided past me, I looked it in the eye and it accelerated with three rapid wing beats, and it flew out of the water. I may have spooked it, or just made the ray want to show off. Who knows? Another one swam by a moment later.