The video talk about how deep the ocean is, the different creatures that live underwater, and shows where the tallest buildings or mountains would reach underwater. I was amazed that water can heat up to 800 degrees around hydrothermal vents and am curious to learn more about the chemical characteristics at that point underwater. I was also amazed that there is an estimate of thousands of species undiscovered until this day under the ocean, and excited to see how technology advances in that field.