Electric blue Nike swim shorts with teal zipper pull

Yesterday around 3pm my electric blue Nike swim shorts, size M, went missing near the Castillo de San Marcos bayfront in St Augustine. They're Nike Swim with lime-green trim along the hem and a tiny teal seahorse zipper pull on the back pocket. The fabric has a little sun fade and there’s a faint salt stain along the leg, but the zipper still works. These shorts were a gift from my sister and I wear them for weekend runs at the beach, so I really need them back; I’d be forever grateful to anyone who found them.