Mark, while I was looking at your photos, the word that came to mind was grotto. Whatever is the best geographical characterization of the site, it is unusual and grabs the attention.
When I first looked at the second photo, I felt somewhat distracted by the blurred foreground. But I can see the reasons why you included it. In that shot you appear to be standing in the middle of the water flow with a good view of the caverns as they continue in the distance. Do they continue for some distance beyond what can be seen in the photo?
An excellent set Mark. Glad the camera recovered (and also that you didn't join it in getting wet ...)
I'm sorry but I don't like things out of focus at the front of a photo
Roy
A beautiful spot, but I have to agree with Roy. There are exceptions, but more often than not, blurry stuff, either motion blur or material out of focus, in the very front of an image is distracting. And in the first image, that's roughly half the image.
I think that one thing making this particularly pronounced is that the water is only partly blurred. If it were entirely blurred, and if there were some cropped off the bottom, it might work, because then the blurred water would be one shape. Now it's a mix of partially visible and partially blurred rocks.