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How Can You Tell if a Shell Is Alive?

Check the opening of the shell for a living animal. If you see a soft body or foot, a hard door called an operculum that closes, or any movement, or if the shell is heavy and smells, it is alive and should go back in the water. A sand dollar that is dark brown or purple-gray and fuzzy with tiny spines is alive too.

Snail shells: check the opening

Hold the shell with the opening toward you. Look for a soft body, a foot, or a hard plate (operculum) sealing the opening. Watch for any slow movement. Hermit crabs also move into empty shells, so a shell that walks on its own has a crab inside. When in doubt, put it back where you found it.

Sand dollars: color and fuzz

A live sand dollar is dark brown or purple-gray and covered in tiny fuzzy spines that may move. An empty one is clean, white and dry, which is the skeleton (test). See the keyhole sand dollar guide for photos and what to look for.

Starfish and sand collars

Leave live starfish and sand collars where they are. A sand-colored ring on the beach is the egg case of a moon snail such as the shark eye.

On our tour: guides look at every live animal the group finds, talk about it, and return it to the water. Guests keep only empty shells. Book a night tour or text 941-782-9226.

If it is alive

See the shelling rules and check with the Florida Fish and Wildlife Conservation Commission (myfwc.com) for current rules.

More shelling questions

On our night tour

Shelling is easier with a guide

You do not need to know the tides, the beaches or the shells. Pick a location, show up 20 minutes before 8:30 PM, and we handle the rest: gear, the light, the safety briefing and the show-and-tell at the end.

Fun Florida Tours runs a guided night shelling and snorkeling tour in shallow Gulf water at Siesta Key, Sarasota and Anna Maria Island. You wade in from shore with a guide, the group shares one bright LED light pod that lights up the bottom, and the water stays under 4 feet deep, so you do not need to be a strong swimmer. After 60 minutes in the water we spend 15 minutes on the sand for show-and-tell, where guides name everything the group found. Empty shells are yours to keep; anything alive goes back.

75 min60 in the water + 15 show-and-tell
8:30 PMnightly, weather permitting
$60 / $45adults 12+ / ages 6–11; 5 & under free
All gearsnorkel, aqua socks, glow stick, bag & net

Book a night tour Text 941-782-9226

Updated October 2026. Conditions change with weather and season. Nothing is guaranteed. Rules vary by location and can change, so check posted signs and the Florida Fish and Wildlife Conservation Commission (myfwc.com).