How do you complete the cavern of the gods in endless ocean blue world?

I'm not sure, but I hope this cheat will work:

1. Wait until your air starts to run low.

2. Turn the mechanism.

3. Wait for the cutscene.

4. After the cutscene, just sit there until your air runs out.

I'm not sure what will happen I haven't tried it yet, so I don't know what will happen.

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That won't work. If you run out of air, it will start you back over from when the "Singing Dragons" go berserk. I have already spent half an hour trying to get out.

Over the radio, when you leave and go left but are stopped by the current, Jean-Eric says this:

(Your Name)... go... room... opposite side...

can reach... from highest point... another... room of pillars...

that side... that room... should be... exit....

has to... somewhere... there...

Then the radio cuts out completely, and Jean-Eric is gone.

I hope this helps, even if it's just a little.