Let's follow this line of reasoning a little further.
Since you are a cavediver, and have taken multiple classes concerning such, I will assume that you know that speleogenesis (the forming of caves) is an ongoing and probably never ending process. Rainfall turns slightly acidic as it percolates down through the dirt on it's way to the aquifer, and dissolves the rock on the way, water flows through the holes and cracks that are formed, wearing away more rock, etc, etc. Point being, the cave that you enjoyed the last time you dove it has changed by the next time you dive it. And, since we both know that that particular rock formation that you find so intriguing will, due to natural forces, at some point be no more, it is totally OK if I go down there with hammer and chisel and "harvest" it for my rock collection.
Please tell me that you have more regard for the treasures that we all dive to see. Please.