Above and below water

In 3D Artist Issue 17 I read a Q&A tutorial by Dominic Davison explaining how to create a split water scene, half under and half above the water. Well, it was not easy, I had to start over several times till I got a fairly similar result. ...but it was a good experiment to try something very different again
The water plane is actually a regular plane, so displaced water surface was not an option here. Some tricky atmosphere tweaks were needed to get the watery effect.

Vue 8.5 Infinite + minor postwork in PS CS5

Thanks for viewing!

EDIT: OMG a Daily Deviation!!!!!! lots of thanks to ^artofkerem for featuring and to my sweetest =KnowYouAre for suggesting