You're welcome.  I'd be interested to see what you come up with.

I will say that while I was experimenting with booleaning a cave I did find it very hard to see inside the cave, once made.

So I put some water inside, and a light, this worked fine, but if going further with it, I'd have to think about using some rocks or another lattice to half block up the entrance, or the water looks odd.  As it was I tilted the water, to try and get it to look more natural - the other option is to first tilt the lattice you are using to do the booleaning.

If you look at this image and notice the line of the water's edge between the two red arrows? That's what I mean.  And that's after tilting the water.  Before, it was a lot worse.

Measure your mind's height
by the shade it casts.
Robert Browning (Paracelsus)

Fran's Freestuff

http://franontheedge.blogspot.com/

http://www.FranOnTheEdge.com