Took a risk flying over water. One time the drone was 1m above water hovering, and I was looking for the parachute in the sky. when I looked at the display I saw drone almost fall into the water, and immediately pull up. If I had looked at the screen 1 second later I would have lost the drone. So don't trust the optical flow sensor too much. Maybe it happened because of the large waves, the drone got confused.
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Nice. Yes, on the water they seem to go down slowly sometimes.

Lovely footage MDK.   No doubt about being super careful when flying over water, especially when waves are involved.  

A great subject. Glad you didn't have a mishap with the drone landing in the water. Too close for comfort!

Nicely captured.    

Hello there MDKhairul. Good day and thank you for posting this wonderful aerial video that you have filmed. Great work and keep flying. .

Nicely done!