…Mark and Carina are making hay? Discoveries??  Like Cooling Temps?  And Flowing water…  what on earth (or in a cave system) could that mean??

It might mean that there’s another reason to hope that they might be able to find a way out… but out to where?  The middle of nowhere without any form of transportation.  One thing we know is that they have kept moving away from where they had been- no secret/hidden beach or crashed airplane (again, what was the point of all that??) to confuse them.

So maybe their next move is to lay Gabe on his back, (neutral buoyancy) climb aboard, and see where the current takes them…