The visuals are stunning, many never seen before. I laud Obama for his support and voiceover. Even more appreciation goes to the people who designed these underwater equipments. Lastly, the highest level of appreciation for people on the ground. The overall effort and outcome is superhuman, I'm amazed sitting at home and watching it on netflix as to how this coverage is humanly possible, special appreciation to the southern ocean episode. A must watch for everyone, to induce a sense of self righteousness to preserve our oceans & environment and keep it clean. Earth is too magnificent to destroy for temporary joy/ gains.