The video shows a person using a fish finder to scan the depths of the water. The person's finger is seen pointing at the screen, indicating different areas of interest. The fish finder screen displays various readings, including depth, temperature, and the presence of fish. The person appears to be looking for a specific type of fish or a particular area to fish. The fish finder is a device used by anglers to locate fish underwater by emitting sound waves and measuring the returning echoes. The person's actions suggest that they are experienced in using the device and are searching for a good fishing spot.