As you get closer, you see more markings in the sand, all leading into the water. It’s real. In the middle of the lake, suspended just above the water, is a large dome with light escaping from several small holes.Through the openings, you see movement, but you can’t make out what the creatures are. You try to snap a photo but the dome is too far away. Do you go back to the ship with the fuzzy images, or do you swim out to the dome to get a better look?