It was raining lightly when I visited Walt Disney World on a solo trip on May 12, 2018, and here’s what I did to protect my Nikon: I got a plastic bag from a very cooperative cast member in a shop! It is an effective trick. However, note that you no longer qualify as a “guest without bags” for getting quickly through security with this setup. I was at Disney’s Hollywood Studios when I took this photo with my iPhone.