6 equal size round amber colored lights equal distance apart, stationary for at least 2 hours.

My mother, sister and I were sitting in back of our rental cottage ("MY STARS") on lawn chairs in the sand facing the ocean as we did every night, every year where our family gathered for a week long vacation.  
We all noticed about the same time that the amber circles which were all the same size appeared quite high above the ocean and a far distance from us in a line with a large but equal distance apart from each other.  
They appeared stationary and were visible to us for at least two hours and were gone leaving no evidence including noise that they had ever been there.
Witness elects to remain totally anonymous; provides no contact information.  PD