Layang Layang, Southern Spratley Islands 2012. We were heading back to the resort after a dive when a group of dolphins came up. We jumped into the water and swam with them briefly. I hung around in the blue admiring the absolute clarity of that turquoise sea. The other divers were calling at me to get back on board when I saw this luminous crescent fin with a mother-of-pearl sheen swim underneath me. "Something's down there!!!" I yelled. I thought it was another dolphin but they don't have this sort of extraordinary color.
"MARLIN", "Its a Marlin!!!" I yelled out.
Everyone started jumping into the water right away.
It swam up - looked at me with its big black eyes curiously. And then it swam away.
Footage is actually from Karenne Tun - she is using a GoPro camera.