The video shows a group of guinea pigs in an enclosure with grass and hay scattered on the ground. The guinea pigs are seen eating the grass and hay, while some are resting under a wooden shelter. The enclosure appears to be indoors, and the guinea pigs are of various colors, including white, brown, and black and white. The video captures the guinea pigs' natural behavior as they move around the enclosure, interact with each other, and feed on the available vegetation.