Lost silver heart-shaped necklace with intricate designs near the shoreline at the beach in Okaloosa, Florida.

I lost my silver heart-shaped necklace with intricate designs while I was at the beach in Okaloosa. I think it fell off when I was swimming near the shoreline and realized it was missing as I was packing up to leave. It has a special charm that holds sentimental value, and I'd love to get it back if anyone finds it.