At the 12m line moving from 0 to 100m mark and looking along the line towards the direction of movement.
Lots of sand throughout most parts of the video, and the sand continues down deeper to depths of 30m and greater. Makes me wonder why the reef edge stops at 12 to 15m. Could it be the lack of substrate available for coral growth?
Shot on a GoPro Hero 2 by Gemma Thomas on the 26th of October 2012.