It's a shame because it's such a neat place to make beautiful caves and a natural underground waterfall reasonably accessible* for people who aren't able or willing to go full on spelunking.

The pipes are there as backup for when there hasn't been much rain. (Or at least they were when they were first installed.) When we're in drought, they don't want to tell the tourists "the falls are dried up today, but the caves are still really cool!"

But when we've had tons of rain they have to close due to flooding. I've been there when we've had a lot of rain and the falls are absolutely gushing and the floor is getting quite wet and you start remembering just how far the walk back to the elevator is...

Also the caves really are cool.

*not disability accessible. Lots of uneven steps and wet ground.