Reflection of strange object in the waterhttps://youtu.be/nqG1-kRT0Is I live near Mookgophong in the Limpopo province. On 16 April, 2017, just after sundown, I filmed the reflection of a strange object in the mirror smooth surface of a farmdam.Because it was a totally windless afternoon the clouds reflected perfectly in the water and I decided to film a small island in the dam to create the effect that it float in the sky. (first part of the video).Then, I decided to try and film the reflection of my drone in the water. I had to gain height not to desturb the waters surface with the prop wash. I then recorded the image of the drone in the water. During this period I didn't notice anything strange. The three people with me also did not see or hear anything.It was only the following morning when I played back the recording that I saw the strange object.I am including the YouTube link to the video.((NUFORC Note: The witness provides high-quality video, which shows the reflected image of a strange object, passing across the field of view of the quadcopter camera. We are unable to identify the object. PD))