Light darting around over resevoirMy girlfriend and I were walking along the dam wall at the local resevoir. There was no moon and there are no lights around. Our eyes had become accustomed to the low light and we walked to a lookout. On the way back I looked over the resevoir and saw a light dart up then down below the range of hills in the distance. I stopped walking and watched and it flew up again, hovered with a shaking motion, then "hid" again. The object had a white light on the front, a red light on the bottom and a flashing yellow light on the back. At all times it was silent.I drew my lady friends attention to the distance and it obligingly darted into view again. It didn't seem to be affected by inertia and when stationary, seemed to shake as if it was between two repelling magnets. At one stage it dissapeared behind the range of hills and a vivid red light lit up the trees on the ridge as if they were on fire. Then it flew up, darted round then flew down to the water. A bright red light eminated from the front of it, not a beam, more like ambient light. After a couple of minutes it flew up again and started moving in our direction. It started off about 2/3 kms away and got to a few hundred metres away before I decided to leave. There was a feeling of danger and were glad to go, despite my curiosity.One of the strangest things about the event was that as we left the house to start our midnight ramble, I had a feeling that we would see something and I said as much to my girlfriend.((NUFORC Note: Date may be approximate. PD))