Humpback whale diving.
A humpback whale will surface a few times in a short period of time and then deep dive for several minutes. When it deep dives, the tail usually flips up, which you can see fairly well in this picture.
A humpback whale will surface a few times in a short period of time and then deep dive for several minutes. When it deep dives, the tail usually flips up, which you can see fairly well in this picture.