Live shelling is prohibited on Sanibel. Any shell with the animal still in it goes back — sand dollars, sea stars and conchs included. The identification test is simple: a live sand dollar is brown or purple and covered in fine moving spines, a dead one is bleached white and smooth. This is the island's defining rule and it is enforced.
Smoking and vaping are banned across every City of Sanibel park, beach, parking lot and access point, and on Lee County land inside the city, under ordinance 26-001. The civil fine starts at $50 and can reach $500.
Turtle season rules apply through the warm months: no gear left on the sand overnight, fill in every hole you dig, flatten sandcastles, and keep white light off the beach after dark.
Buried debris from Hurricane Ian and the storms that followed has not entirely worked out of the sand and shallows along this coast. The city advises footwear in the water and it is worth taking seriously rather than reading past.
Glass is not permitted on the sand, and the grills are for charcoal in the provided structures rather than open fires on the beach.