Amber/orange spheres over Tybee Island, Georgia.

The sighting occurred with a friend on Tybee Island, Georgia in late December of 1980. The objects were amber to orange glowing spheres. We had seen several (2) earlier the same evening on the way out to the island on US 80, that were positioned over an area proximate to the Savannah River somewhere near Ft. Pulaski National Monument. These moved slowly east to west at slightly different altitudes and then descended below tree level. Their desent was very slow.
We eventually ended up at old Fort Screven on Tybee, on the wall facing the Atlantic. Out over the water was another one of these glowing objects that just seemed to hang in the air. From out vantage point, we double checked our bearings by identifying various landmarks both north and south of us along the shore. The glowing object seemed to wobble once or twice and may have made some slight movement but we couldn't be sure. After about 30 minutes or so, the object, right before our eyes, just winked out. It was gone, poof. None of the objects emitted any noise whatsoever.
We were familiar with the appearances and characteristics of helicopters coming and going from the Coast Guard station on the island and the objects we witnessed could in no way be mistaken for helicopters or planes.
Date in "late December 1980" is approximate.  Please note that this is about the same time that the celebrated "Cash-Landrum" Incident occurred near Dayton, TX, a case in which three people were seriously burned by an unidentified object that may have been a UFO.  For details about the incident, which occurred on the evening of December 29, 1980, please see the book, titled "The Cash-Landrum UFO Incident," by Dr. John F. Schuessler, Ph.D. (eng.), who currently serves as International Director for the Mutual UFO Network, Littleton, CO (www.MUFON.org>.  PD