The video shows a person swimming underwater with a flashlight. The person is wearing a diving suit and is exploring the underwater environment. The water is dark, and the person's movements are slow and deliberate as they navigate through the water. The flashlight illuminates the surrounding area, revealing the rocky and uneven terrain of the underwater landscape. The person's breathing is audible, and bubbles can be seen rising to the surface. The video provides a glimpse into the mysterious and fascinating world that lies beneath the water's surface.