It starts with the establishing shot and then zooms in and gets a closer look to what he is doing. Where he stands on his boat smoking a pipe while looking out at the ocean. He looks slightly suspicious because of the blood and a pair of legs sticking out from the scene.
This is the point of view of the man from his boat looking out at the sea. Where the sharks are circling the boat.
Another point of view of the man where he sees a person thrown in. As soon as the person sinks the sharks swim below the surface.
In this scene you see a long shot of the lady that was thrown in, sinking to the ocean floor. This shot causes suspense because the viewer is waiting for something to happen.
This is a point of view of the lady where her vision is all blurred because she is underwater. As well as she would have been heavily drugged.
This scene shows a close up of the shark with its mouth wide open looking vicious. In the back round is the ladies head which avoids obvious attention.