The video shows a group of people swimming in a pool. The water is clear and blue, and the swimmers are wearing swim caps and goggles. The swimmers are moving in a coordinated manner, suggesting that they are practicing a specific swimming technique or drill. The camera angle is from underwater, providing a unique perspective of the swimmers' movements. The light from the surface of the water creates a shimmering effect on the swimmers and the pool floor. The swimmers are wearing different colored swim caps, which helps to distinguish between them. The pool appears to be indoors, as there are no visible windows or natural light sources.