Had a fly away with the Phantom today. Have to say it was pilot error. I was planning to shoot some video at some nearby falls. There was a power generating station at one end of the falls that has been inactive for years. I found out today that they are running it again. I had the Phantom set up with the GoPro attached in it's underwater housing. I had my floats attached to the Phantom in case of a water landing. I went through the normal checklist and did the compass dance but it did not seem to finish correctly. Could not get all satellites as there was a mountain to one side of me. I moved to a different location and tried again. All seemed well. Got the compass calibrated and all green lights for takeoff. The wind had picked up a bit and the craft seemed a bit wonky at launch. I should have landed immediately but I kept it in the air thinking it was just the wind and that it would settle down in a few seconds. As I raised it up a bit and move out over the water, it started to ignore my commands. I managed to steer it back over land behind me and tried get it to come down. Just as I nearly had it on the ground, it took off completely out of control. It flew across the water, over a road and crashed into a tree part way up the mountain. Then it flew back across the road and hit a pole on top of a building and I lost sight of it. I quickly drove to the area where it had likely gone down expecting to find it crashed in the road but it was nowhere to be seen. The building was the old power generating station. It was surrounded by chain link fence, barbed wire and "No Trespassing" signs. I looked through the fence but was unable to find the Phantom. I was surprised to see two vehicles parked inside. This placed had been shut down and overgrown with vines for as long as I can remember. Now it looked all spruced up and there were lights on inside. I crossed the road and climbed up to the railroad tracks above but was still unable to see anything. The building had a flat roof with a short wall around it. I then scaled the side of the cliff by climbing up the old dead vines that had been growing there. It was very steep but I finally managed to get about 100 feet up where I could see the roof on the building. There in one corner was my Phantom sitting upright. I climbed back down and found an entrance to the facility, went inside and located some workers there. I explained my situation and they were happy to help. They got a maintenance guy to go up on the roof and retrieve the Phantom. It was in pretty good condition but missing two of the pill bottles I had attached for floatation. One was on the roof. The other had fallen in the road. The battery was also missing. At some point, the door had come open and the battery fell out disconnecting itself. I never found it. After I got home, I fired up the bird and it seems to be OK. It was very windy and getting dark, so I did not fly it. I will want to do some more testing before putting it in the air again. For the record, I am still using 3.14 firmware. Lessons learned: Never fly near power lines even if you think they are not energized. If anything seems wonky, don't fly. The pill bottles I had attached for floataion were not anchored well enough to survive a crash, and might likely have come off during a rough water landing. I had wrapped tape around the connection in addition to snapping then onto the lids. One unsnapped from the lid. The other actually broke the lid. The other styrofoam blocks remained attached and may have even protected the GoPro. It survived without a scratch. I need to learn to fly in manual mode as this might have helped gain control. I will try to post the video later.