The video shows a group of people scuba diving in the ocean. They are wearing scuba gear and are accompanied by a yellow and black robotic device that is swimming alongside them. The robotic device appears to be equipped with sensors and is being used to explore the underwater environment. The divers are seen swimming in a line, with the robotic device leading the way. The water is clear, and the ocean floor is visible, covered in sand and small rocks. The divers are moving slowly and carefully, observing their surroundings. The robotic device is the main focus of the video, and it seems to be the tool of choice for this underwater exploration.