Imagine yourself descending into the oceanic abyss toward the hydrothermal vents on the ocean floor. Before you reach rock bottom, you pass through the twilight zone and then into the dark zone - where sunlight no longer follows you. However, some Humpback whales are tailing you...and discussing how weird of a creature you are in your deep submersible vehicular device.
Prepare to see bioluminescent creatures for the first time in human history. Never know who you'll meet on your way down... .