Thought we saw a drone that appeared and descended and hovered in virtually in same spot for 45mins-1hn

We were staying at White Sands estate near Bicheno Tasmania. We decided to go for a walk at about 430 in the morning to see if we could spot an aurora. We positioned ourselves just slightly south of the white sands Estate on the rocks next to the water. standing there stargazing we thought we saw what we perceived as a drone dropping from higher up and then hovering about 20 m to 30 m maybe off the surface of the water. It’s stayed rather stationary for that time. I took a few photos with my phone only, and then noticed the other what seemed like weird shaped objects in the photos too. Time and date stamps are on the photos. I can also send through others that haven’t been adjusted for light etc. Zoom in on the photos will show you the different details etc.
While watching there seemed to be an object flash,looked a bit like a piece of rope, almost but glowing that seem to eject out the top left hand portion at about 11 o’clock and then later, looking in the photos, it appeared and stayed at that position for the hour