In an indoor aquatic enclosure, a hippopotamus is seen submerged in a pool of clear water, with its head and upper back visible above the surface. A small, white bird, resembling an egret, stands calmly on the hippo's back as the large mammal moves slowly through the water. The enclosure features an artificial rock wall in the background, designed to mimic a natural habitat, complete with painted details and some hanging artificial greenery. Overhead, large windows or skylights are visible, providing natural light to the indoor space. The blue edge of the pool is also visible. The scene captures a unique symbiotic interaction between the bird and the hippo, likely within a zoo or aquarium environment. The water shows ripples from the hippo's movement.