The photo below is of some flowstone in a cave in Mulu. Flowstone is formed from calcite where water flows down a wall. As the water is agitated, it outgasses it's carbon dioxide leaving behind calcium carbonate, aragonite, gypsum or other minerals that were previously dissolved in the water.
As you walk around a bend in the trail on your way of of Deer Cave, you're presented with this profile of Abraham Lincoln.
The shot below is perhaps the classic Deer Cave shot. Mine is actually a seven-shot HDR - seven slides scanned and merged in Photomatix Pro.
As we went further into the massive passage that is Deer Cave, I turned back and go this shot back to the entrance.
Deer Cave boasts some impressive measurements - passage length of over 4 kilometers with a one kilometer stretch with a width of 174 m and a height of 122 m. The main entrance (photo below) has been measured at 146 m. Indeed, you can get an idea of the scale from the two men that appear in the photo.
The day after we watched the bats stream out of the Mulu caves my guide took me to Deer Cave. On the way we passed this dry riverbed. I was quite surprised