Traveling one hour by boat in the darkness, I arrived the location called Xia Long (下龙）before twilight. Some clouds were floating on the sky, which indicated that the sunrise would be interesting. I started to shoot when the first light appeared over the sky. Within just couple of minutes, the sky began to dance.
This image was captured with a one 1-stop GND hard and one 1-stop GND soft with exposure time more than four minutes at f/5.6.
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