Live shelling is illegal on Sanibel. If something is living in it, it stays on the beach, and the rule reaches past the obvious spirals to sand dollars, sea stars and conchs. A live sand dollar is dark and velvety with moving spines; a dead one is white and smooth. When in doubt, put it back in the water.
Every City of Sanibel park, beach, lot and access point, plus Lee County land inside the city limits, is smoke and vape-free under ordinance 26-001. A first offence carries a $50 civil fine, rising to as much as $500.
Sea turtles nest along this shoreline through the warm months. Fill in any hole you dig before you leave, take everything off the sand at the end of the day, and keep torches and phone lights off the beach after dark.
And the practical one: hurricane debris is still working its way out of the sand and the shallows along this coast, and the city says so in plain language rather than hiding it. Something on your feet in the water is sensible here.