How do you go about designing waterways and pools in caves? Do you use mostly the cliff pieces to define the waterways? Shaft bottoms?
I'm struggling a bit with designing a cave. I made a large shell like in the tutorial but I'm having a hard time moving forward.
Any advice?

I place a water activator, scale it way up, and use that. I use cliff pieces to create the walkways, and use waterfalls and streams to