Lost passport belonging to Sarah Thompson with recent Italy trip stamps near Key Largo beach.

I lost my passport while having fun at the beach near Key Largo. I think it fell out of my bag while I was taking pictures. It has my name on it, which is Sarah Thompson, and some recent stamps from my trip to Italy in it. I've retraced my steps a few times, but no luck so far. If anyone finds it, I would really appreciate getting it back.