Before sunrise in May, the sand of any beach on Anna Maria Island isn't warm. In fact, it's cold enough to make my toes go numb if I were strolling .barefoot. But that's not allowed for a group of beach walkers out on the first of the month - shoes with soles are required. They aren't your average beachcombers, either. They're carrying mobile phones and tablets, but they're looking down at the sand not their devices, searching for an impermanent treasure - the flipper trails left by sea turtles.
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