How to put a lake on the ceiling?

Another user's answer to a recent question, specifically the way it was worded, gave me a vision I cannot shake.

Our intrepid adventurer, Joe A. Venture, is making his way through a subterranean network of caves and comes upon a small stream. He follows the stream and arrives in a large chamber. Here, the stream transitions from the floor by his feet to the wall and ascends to a glimmering expanse of water stretched across the ceiling, rippling and flowing as any body of water exposed to wind or current.

A quick search reveals that, maybe, it is indeed possible that the water in a cavern (or other enclosed environment) could rise up to the ceiling. The linked experiment utilizes sound waves to levitate water droplets, but can this effect be scaled (via sound or other means, naturally or artificially)?

Is it possible to put a lake on the ceiling, and how is it done?

posted about 6 years ago

Frostfyre‭

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