On a evening of May 19

On an evening of May 1980 while out crab hunting along a secluded beach, with no lights or houses we were confused as to approaching bright lights coming from the ocean horizon thinking it was a airplane but were aware airplanes didn't take that approach to our only runway we kept watch until the craft came to a stop almost directly above us then eventually went back out the same direction it came from. Craft had multiple observations type windows and colored lights on the bottom it was huge