St Pete: Dolphin Watching Cruise & Shell Key Sunset Stop

Dolphin watching from st pete with shell key island walk and sunset return

You’ll board a spacious catamaran in St Pete for dolphin watching along Shell Key Preserve, guided by locals who know every story behind those waters. Wander barefoot on Shell Key at sunset, hunt for shells or just listen to waves. Return beneath Pinellas Bayway Bridge’s arches as dusk settles in—maybe not every photo will be perfect, but you’ll remember how it felt.

Step-by-step itinerary

Dolphin watching and island sunset cruise

• Depart from St. Petersburg waterfront
• Pass St. Petersburg's historic Gulf Port
• Pass under Pinellas Bayway Bridge
• Arrive at Shell Key Preserve
• Explore beach and hunt for shells
• Watch sunset over Gulf of Mexico
• Return trip with photo stop at bridge

The Experience

We almost missed the boat because I misread the dock number — classic me. The captain waved us over anyway, grinning like he’d seen this before. That first step onto the catamaran felt wobbly (not just because of the water), but then it was all salty air and that low hum from the engine. Our guide, Jamie, started pointing out sailboats anchored off Gulfport — some looked like they hadn’t moved in years. There’s something about old boats that makes you wonder who lives there, you know?

I didn’t expect to actually see dolphins so soon, but there they were — two of them slicing through the wake as we headed along Shell Key Preserve. Everyone sort of forgot their drinks for a second. The sun was still high but soft around the edges, making everything look washed out and golden at once. Jamie told us about how dolphins sometimes follow these boats just for fun (I want to believe that’s true). At one point, someone tried to spot manatees too but no luck — maybe next time.

We stopped at Shell Key and I jumped off barefoot, sand still warm from the afternoon. It smelled faintly of seaweed and sunscreen. I found a shell that wasn’t perfect but kept it anyway; my partner laughed when I showed him — “souvenir?” he said. On the way back under Pinellas Bayway Bridge, Jamie slowed down so we could take photos of that weird tunnel effect with all the arches lined up. Honestly my phone camera didn’t do it justice, but I still think about that view.

What’s included

Your evening includes pickup in St Pete, a guided dolphin watching cruise aboard a 45ft catamaran with both a bar and restroom onboard, plus time to explore Shell Key Preserve by foot before returning under Pinellas Bayway Bridge as sunset colors settle over the Gulf.

Good to know

Easy physical levelPets welcomeInfants must sit on laps

Operated by Coastal Cruises

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Top questions

Is there a restroom on board during the dolphin watching cruise?

Yes, there is a restroom available on board.

Does this St Pete dolphin watching cruise include pickup?

Yes, pickup is included for this tour.

Can infants join the sunset cruise?

Infants are welcome but must sit on an adult’s lap.

Will we get off the boat at Shell Key Preserve?

Yes, you can get off and walk or search for shells at Shell Key.

Are drinks available during the cruise?

Yes, there is a bar on board for drinks.

Is this dolphin watching cruise suitable for all fitness levels?

Yes, it’s suitable for all physical fitness levels.

Are service animals allowed on this tour?

Service animals are allowed on board.

How long does the day trip last from St Pete to Shell Key and back?

The exact duration isn’t listed but includes time cruising out and back plus time at Shell Key around sunset.