A cave or cavern is a natural underground space large enough for a human to enter. The term applies to natural cavities some part of which is in total darkness. The word cave also refers to smaller spaces like rock shelters, sea caves, and grottos.
These caves are so amazing that we can’t help thinking that nature is powerful. It can bring such wonder and surprise to us. Maybe while we are apriciate its beauty, we should also protect it. Let’s just enjoy the amazing caves!