The key was located under the beg that is freeze into an ice cube, and without it getting melted, it is impossible to get rid of the restraint. But it is actually taking longer than I expected to completely melt the ice, and the second key was nowhere to be found... But I was lucky enough to break the ice, and get the key inside of the ice cube before I was completely exhausted.. It is quite dangerous to be honest! Anyway, be safe guys, and hopefully you will enjoy the video.