On 8/18/14 our family spent the evening on the beach, near the harbor, in Oceanside, Ca. Around 9pm we all laid on our backs in the sand and were observing the stars and sky when we noticed dozens of lights passing directly overhead. They appeared to be of a very high altitude, star like, and seemed to be flashing. They were all heading south in an wobbling or zigzag motion. Some were brighter than others. There was a very thick cloud cover at the time and they could only be seen in the breaks of the clouds. We observed them for about 30 minutes until the cloud cover prevented us from seeing anything else. We must have seen over a hundred of these objects. During our spotting we did notice a plane and a helicopter in the area but at much lower altitudes.