American Museum of Natural History: O Logy: Journey to Deep Sea Vents

Take a submersible down to the seafloor. As you descend, passing through the ocean's sunlight, twilight, and midnight zones, you can observe how temperature, pressure, and light levels change. When your submersible reaches the seafloor, you can jump to an exploratory game that lets you collect specimens of the sea life found in and around a deep-sea vent.