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Cydonia Hints
How do I open the underwater portal?
1 of 4: Did you notice the symbols above the portal?
2 of 4: As you press the door panels, different sounds can be heard. The symbol associated with that sound appears on the cube above the door.
3 of 4: The panels and their associated sounds change with each game.
4 of 4: Reading the symbols etched into the portal from left to right, make the proper sounds by pressing the panels in the correct order.