Hello,Here is the link of our 3-day trip to Yangshuo China. Most of the footage are from my DJI Spark - crash including (at 2mn30 - but why my DJI Spark loses altitude out of the blue??)

I hope you will like it!
Thanks

Great job lovely place to fly, interesting staring as well  

Nice video!
Did you check the flight logs to see what happened?

Thank you for your messages. No I did not check but i will definitely do. This is not the first time i notice this behaviour and I have this feeling it happens when the Spark is over water but i will check and let you know.

Thanks again.