In the video, there are three dogs of different sizes and colors playing in a shallow stream. The largest dog is a light-colored Labrador, the medium-sized dog is a black Chihuahua, and the smallest dog is a white Chihuahua. They are all splashing in the water and having a great time. The stream is surrounded by rocks and trees, and the water is clear and flowing. The dogs seem to be enjoying each other's company and the refreshing water.