I love the show. I've learned more stuff from his show than I ever did in highschool. A most interesting item he wants to explore even more, is the site of an alleged cave in the Grand Canyon that is reported to hold a huge cache of Egyptian gold artifacts. After seeing the show, again, I got a brilliant idea. Instead of replling down from the top and trying to locate the cave, why not raft on the river to the location, then use a drone and locate it? He just recently posted that he loves that idea and has given it to the producers. My newest idea on this approach is not with just one bird searching for the cave, but several. Perhaps a few of you who live in that region might be able to get together and help the man out. There must be something to the legend because when people hunt for the cave, they get an audience of black helicopters.