Shell Island Florida Snorkeling Tours & Dolphin Cruises

The Jetties at St. Andrews Pass

The rock jetties that guard St. Andrews Pass, at the western tip of Shell Island, hold the clearest water and the most fish anywhere in the area. Gulf water funnels through the pass on the incoming tide and pours over the granite boulders, and sheepshead, spadefish, mangrove snapper and the occasional flounder or octopus shelter in the rocks. It is a short hop from the Panama City Beach marinas, and boats anchor on the calm bay side of the jetties so you can drift the rocks in waist- to chest-deep water.

Snorkel the jetties on a rising tide in the morning, before the wind picks up — that is when visibility is best and the current is gentlest. Watch your footing on the rocks and keep clear of the pass channel where boats run.

• Best on a rising tide in the morning, before the afternoon wind
• Sheepshead, snapper, spadefish and flounder in the rocks
• Anchor and enter on the calm bay side, away from the boat channel

Shell Island Lagoon & the Bay Flats

The bay side of Shell Island is a string of shallow, sheltered lagoons and grass flats where the water is calm even when the Gulf is choppy. This is the easiest snorkeling in the area and the reason Shell Island works so well for families: children and nervous swimmers can stand on the sand while stronger snorkelers cross the seagrass looking for blue crabs, hermit crabs, sand dollars, pinfish and the odd juvenile sea turtle. Most catamaran tours anchor here for the main snorkel stop because the ground is soft and the water rarely tops chest height.

Shell Island Snorkel Spots at a Glance

The island sits between St. Andrew Bay and the open Gulf, so there is a sheltered side for calm days and a clearer, livelier side for confident swimmers. Here is how the main spots compare.

Best Time to Snorkel Shell Island

Shell Island snorkeling is a warm-season activity. The Gulf and bay warm into the high 70s by May and hold in the mid-80s through September, which is the sweet spot for comfortable, clear-water snorkeling and the busiest stretch for dolphins. April and October are pleasant shoulder months with fewer crowds and slightly cooler water.

From December through February the Gulf drops into the low 60s, so most snorkel trips pause or switch to dolphin-and-shelling cruises. Whatever the month, book a morning departure — the water is glassiest and clearest before the afternoon sea breeze stirs up the surface.

The Gulf Shore & Shelling

Cross the island's low dunes and you reach the Gulf side, a wide white-sand beach that gives the island its name. The shallows here are clearer than the bay and full of sand dollars, and the tide line is one of the best shelling stretches on the Florida panhandle — whelks, augers, cockles and the occasional sea urchin test. Most tours give you time ashore to walk the beach and collect empty shells (leave any that are still occupied).

It is also where you are most likely to see loggerhead turtle nests roped off in summer.

What to Bring

Operators supply mask, snorkel, fins and a life vest, and the water is warm enough in season that you won't need a wetsuit — a rash guard is plenty. There is no shade, no store and no fresh water on the island, so come prepared.

• Reef-safe (biodegradable) sunscreen and a hat
• A rash guard or swim shirt for sun cover
• Water and snacks — there are no facilities on the island
• A mesh bag for shells and a waterproof phone case or GoPro
• Water shoes for the jetty rocks

Is Shell Island Snorkeling Safe for Beginners?

Yes. The bay-side lagoons are shallow and calm enough to stand in, crews give a briefing and hand out life vests, and the catamarans stay anchored beside you the whole time. First-timers and children do best on the sheltered flats; the jetties suit stronger swimmers because of the tidal current through the pass.

If anyone in your group would rather stay dry, the dolphin cruise and beach time make the trip worthwhile on their own.