Find a way to mark your stuff in a way that only you will know (not easly removed), then if it happens go around and make small talk with other campers and see if you can identify your stollen items. If found notify security and let them get your items back for you.
Went to a estate sale years back, man had painted ALL his tools with blue paint so as to make it easy to identify his items if they were ever stollen.
Not my thing but it worked and I still have his blue paint on MY tools to this day, so now I can identify my tools :B