I went to Mandiangin last April with a friend.
I used to visit Mandiangin for my art group's workshop. Since I missed our 2014 workshop, I decided to go to this mountain without my art group (but I end up met two of them there).
It's located in Tahura Sultan Adam, Mandiangin, Pegunungan Meratus(Meratus Mountains), Kalimantan Selatan (South Borneo).
These photos taken with my iphone5 only, without filter and editing. Taken around 6-7 AM. I felt so amazed, the mist felt like cloud. :D I got to see the sunrise.