Baldwin says UFOs have been reported for years off the coast of San Diego. Baldwin says the spinning motion of an underwater flying saucer could do just that. Scientists at the Scripps Institution of Oceanography are skeptical of the UFO theory to say the least. Bill Schmidt does extensive research on ocean rip currents. He says the spinning motion in the video appears to be a giant eddy, perhaps caused by two competing ocean currents.
Rip currents run perpendicular to the shoreline, flowing straight out to sea.
Once they get outside the surf zone they sometimes collide with long-shore currents heading north or south. When the two currents come together a spinning, eddy motion can result. There is also a deep canyon off the coast of Black's Beach, which can make ocean currents unpredictable. But because the video is so short Schmidt says it's difficult to say exactly what caused the eddy. As for the man who shot the video, he's still at a loss to explain it.