While vacationing in Hawaii, 3 flights in with me issues at all, suddenly today at the beach getting ready for sown spectcauilar ocean shots I lost signal and control. So got to the beach, found a nice place with no sand take off from , started up the motors, lifted off and hovered at 5ft when suddenly I lost signal on the iPad and lost control of the inspire 1, the wind pushed the bird back into a bushy area behind from where I took off from. Took about 20mins to retrieve the bird from its a bushy hillside location due to razor sharp palms. Nothing broken and everything intact! So lucky! Started it up when I got back to the hotel and no errors or anything weird. Took it out to open area for a test flight, did a calibration and flew it for 20mins with no issues at all. Important to note, I didn't calibrate the bird when I lost signal because I flew not to long before. The imu values were within-operating paremeters. Why do guys think?