I was camping at racliff lake in campsite 12 and it was about 8 or 9 at night. i was observing the stars when a light blue strobing light appeared behind the trees. it appeared east and my body, laying down with my head looking north, the object moved left made a loop and then disappeared up. in complete awe and with my mouth open i tugged on my girlfriend to look up but it was too late. at first i thought it was a beam of light from a flashlight on the trees but the light shined down not from under or from another side of the lake.