Um, Guys….
The first rule of secret nuclear bunkers is not to tell anybody the bunker’s location. At least, we are pretty sure that is the first rule of keeping a nuclear bunker secret. Actually, we are confident that is the first rule of anything supposed to be secret. You do not tell anyone, let alone build a sign with an arrow on it. On the other hand, it might be a trap. If nuclear fallout happens, someone would definitely fall for it.