kinda confused, not sure what this wasIt was dark and i was on holidays, I had got some fireworks and i was setting up rockets on the beach, waiting for my friends to come down onto the beach where I was hiding off to the side, possibly to scare the hell outtta them.When they finally came down onto the beach i was lying slightly north of them watching and i saw something which i can't exactly figure out what it was High up i saw a delta formation of shadowy lights go overhead. I know what different planes sound like and i can pretty much guarantee it wasn't commercial or civialian. I didn't see lights that stood out on any of the corners, just what looked more like about 7-11 objects with a shadowy kinda light moving at high speed in a southerly direction at high altitude, and they didn't make any discernable noise So it could be one object with only its leading edge lit up or maybe it was several