I have a good story that i have kept as a kid and i need your thoughts

I have a good story that i have kept as a kid and i need your thoughts
Every summer since my early years I used to go to Ikaria in Greece and I used to spend most of my time near the sea and I sit and watch the stars because we don't have light pollution and we can see the stars clearly around the age of 12 I was at a wedding on the beach and I was looking at the sky around time 2:00 a.m.  date arount August and I see something passing above me in the shape of a disc with green lights supported in the shape of an octagonat a distance of less than 300 meters I would say I could clearly see the lights passing over my head at a relatively low speed and just going straight into the open water I really can't think of anything else it could have been a plane certainly not a helicopter also not as the island is too remote for there to be helicopters unless there was a need and someone had to leave sick from the island which generally doesn't pass beyond the day helicopters planes the spot is generally remote what is your opinion

Time: 2 am date idk

Location:  therma ikaria greece