I saw the first UFO around 1:00 am, within the next 30 minutes, I saw 4 more and one was being trailed by a low flying triangular shaped craft with three circles on the bottom and what seemed to be ventilation on the sides of the craft. There were many orbs and one appeared about 50 feet directly above me and circled slowly. In the next couple hours I witnessed saucers and opaque masses moving across the sky, one of the low flying masses materialized into an alien looking craft, however I couldn't determine the exact shape, I'm sure it wasn't a saucer though. Only two of the saucers had lights and none of them made a sound.