Chris (Christian Frolich) this one's for you. This reminded me of your many waterfall shots . :)
Best seen LARGE. The brownish rocks are wet with the spray and have a slippery surface hence the shine.
Shot at one of the many waterfalls in Chiang Mai, Northern Thailand. Used an ND8 on my 18-200VR lens. Was in a funny position, with my legs across one of the shorter ends of the gigantic falls. a slip would have meant ....closer to God !
Blending from 4 exposures. I used the auto curves feature and it gave the rocks the glow on the wet section . cooling filter for the water. some layer masking for the water