It was 2:30-2:45pm PST June 28th, 2015. Fortcast was sunny with about 40% clouds.I was cresting a peak on my mountain bike on Spr Ridge trail in Laguna, CA. 33.557038, -117.797068 All of a sudden this disk shaped object appeared out of the North-East hovering overhead. It moved in short busts in sort of a random zig zag pattern. As the object moved it appeared the object sort of tilted slightly in the direction it was heading. It was completely silent. It was a sunny day and the lights were very bright. The lights were a white-blue color that appeared to be made of many small squares that covered the circumference of the edge of the disk. The lights moved around the circumference of the disk in short waves. I was stunned as to what I was looking at. I tried to picture it as being some sort of balloon or advance military jet (I've been to many Air force Bases)and it was unlike anything I have ever seen. I was slow to react but pulled my camera out before it was out of my sight. I was able to snap one picture. I rode very fast up to the top of the ridge and watched it move toward this location, 33.556073, -117.762938. Then it hovered for a few seconds and took off vertically disappearing. I kept looking around for a while and did not see anything else. There was nobody else around me. I only took one photo, three of the photos attached have been zoomed in.