Ummmm....There is a reason that secret bases are called secret. Do you honestly think that a camping trip is going to blow the whole thing open?

Any way we need your help figuring out where to start with all this...What to bring....Ideas.....Info..... anything would be greatly
appreciated.

Have you considered writing out your will. If you do stumble across anything your relatives will appreciate the insight.
I don't want to be the nay sayer here. Here is my advice.
Camera's. Take several and especially those that make movies. Your not getting into the base, if it's there, but you might get footage of weird
stuff. There is nothing like weird footage to generate a huge thread on ATS.
Be safe. Thats important. Take your running shoes.
Good Luck.