Natural phenomena sometimes show us miraculous scenes. On this day, the wind stops on the sea, and the windless sea becomes calm, creating a world of silence. Then, a parent and calf humpback whale appeared quietly. While watching over her newborn calf, the large mother whale slowly dived into the sea, showing off her large caudal fin. At this moment, in the large, calm ocean, I felt like I could only hear the breathing of the whales swimming peacefully.