What's going on between about 0.37 to 0,45 (when '... something goes wrong' flashes up)? Doesn't exactly look like a reasonable thing to be doing with paying pax on board now, does it?
The operation was to land on the beach. A precautionary search and landing involves a low pass over the uncontrolled landing area to check for obstacles, like drift wood, and the suitability of the surface, which depends on the tide and weather. As part of the landing process, it is a permitted operation below 500 feet.
The prec search and landing is part of the PPL syllabus (or was when I was teaching 30 years ago), so every pilot should be aware of it.