We did the KTTK tour, this past November. I was told, when I booked it, not to bring a camera or backpack, but forgot all about leaving them in the room when we went to the MK. I told our guide that I forgot to leave it, he said that since it wasn't a big backpack, I could bring it. I then told him that I had a camera. He said that as long as I don't bring it out, not to worry about it.