The video shows a scuba diver underwater, wearing a wetsuit and scuba gear. The diver is seen using a tool to scrape off algae from a rock. The water is murky, and the visibility is limited. The diver's movements are deliberate and careful as they work to remove the algae. The rock appears to be covered in a thick layer of algae, and the diver's tool is specifically designed for this type of task. The video provides a close-up view of the diver's actions, allowing the viewer to see the details of the algae removal process.