The site plan someone snapped a photo of has the area mostly blanked out, but we can see very clearly that there is only one entrance and one exit, both of which are literally as far away as possible from this cave. I also think I have a general idea of how all the concept art fits together in the final design that I can arrange for you later when I’m at an actual computer if you’re interested.
EDIT: Here's where I think things fit. If someone knows things for certain about this project, they can feel free to correct me. The walkthrough waterfall cave noted below is the area of focus in the photos from @bioreconstruct shared earlier.
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