As far as GPS is concerned: Ask any scientist who works in the field, and that includes forest rangers, firefighters, etc. GPS is amazing.
I'll be glad to have it with me when I someday find Blackbeard's treasure. Then I'll know where to go when I return with a hired crew.
Okay, so that's stretching it.
But there is an atomic bomb in the water near Savannah. Seriously, it's right there, and they haven't been able to find it. Years ago a plane was coming in for a shaky landing and it was decided that dropping the unarmed nuke in the water was better than risking a crash landing with it on board.
So, to this day, the nuclear bomb sits in the mud, under the water, somewhere between Tybee Island and Little Tybee Island.
Now, take a waterproof camera with GPS, attach it to heavy fishing line, go find the bomb, and then get famous.
Just don't tell anyone on the phone or through facebook, email, text, etc. Big Brother will bust down the door and steal your camera.