Thanks to Jonas Linngård for letting me borrow his lovely Panasonic GH3.
In this test, watch how far I can push the darkest midtones to bring all those stones and rocks underneath the surface back in a really nice way. Even though the grading gave it a crispy, contrasty look, you can look at the ice blocks that we didn't loose too much information in the highlights. We didn't loose too much in the shadows either, but a little bit more though we darkened the surface so much.
The grade was made in Adobe After Effects only using curves.