The video depicts a serene scene of a lake with a large group of swans swimming in the water. The swans are mostly white with some black markings on their necks. They are seen swimming gracefully in the water, with some of them diving under the surface. The lake is surrounded by tall reeds and grasses, which are a mix of green and brown colors, indicating a change in seasons. The water is calm, with only small ripples created by the swans' movements. The sky is not visible in the video, but the lighting suggests it is a sunny day.