The video shows a large group of bats hanging upside down from the ceiling of a cave. The bats are densely packed together, covering the entire visible area. The cave walls are rocky and appear to be made of limestone. The bats are mostly dark in color, with some lighter colored ones interspersed throughout the group. The lighting in the cave is dim, with only a few spots of light illuminating the bats. The video does not show any movement from the bats, suggesting they are either resting or sleeping.