St. Pete Dolphin Watching and Shelling Cruise: 3-Hour Tour

Search for dolphins twice, then walk a shelling beach while the boat waits

A three-hour St. Pete dolphin-watching and shelling cruise combines two 45-minute passes along the intercoastal waterways with up to an hour and a half ashore at Shell Island to swim and hunt for shells. The boat departs from one of four St. Pete-area locations and carries a live English-speaking guide, onboard bar and restroom, and plenty of shade for anyone who prefers to stay aboard and watch the waterfront homes and historic Gulfport pass by. Infants sit on an adult's lap. Service animals are welcome.

Step-by-step itinerary

Dolphin watching and shelling adventure

• Depart marina passing waterfront homes
• Pass historic Gulfport community
• Pass under Pinellas Bayway bridge
• Arrive at Shell or Sand Dollar Island
• Go ashore to swim, tan, or shell
• Relax on board in shade
• Return cruise with dolphin watching
• Arrive back at marina

The experience

The tour opens with a slow cruise along the intercoastal waterways, moving past the multi-million-dollar waterfront estates that line St. Pete's coast. On the way to Shell Island, you'll pass under the recently built Pinellas Bayway bridge (its cathedral-like architecture is worth looking up for), and drift past Gulfport's historic waterfront where sailboats moor off the coast. The entire first leg runs 45 minutes and gives the guide time to point out dolphins if they surface. Not every departure sees them, but the route is built around the waterways where they live.

Once the boat reaches Shell Island, you have up to an hour and a half to go ashore. Most people swim and search the beach for shells (sand dollars and other finds wash up regularly), but you can also tan, wade, or simply explore. If the sun or activity isn't your plan, the boat has plenty of shade and a crew happy to talk through the local area, the homes you passed, or the wildlife. There's a bar onboard and a restroom if you need either while stopped.

The return journey mirrors the outbound route: another 45-minute cruise back along the intercoastal, with another chance to spot dolphins before you dock. The whole day runs three hours from start to finish, which means you're back at the marina by early afternoon.

What’s included

• Three-hour cruise with a live English-speaking guide.
• onboard bar and restroom.
• up to an hour and a half ashore at Shell Island for swimming and shelling.
• shade and seating for those staying aboard.

Options for this experience

4 options

Dolphin Watching and Shelling Adventure in St. PeteGuide in English · Available from 25 Oct 2027

Dolphin tour from the MarineMax locationGuide in English · Available from 25 Oct 2027Departure point: MarineMax St. Petersburg, 6810 Gulfport Blvd S, St. Petersburg, FL 33707, USA

Dolphin tour from the Gulfport locationGuide in English · Available from 25 Oct 2027Departure point: 4630 29th Ave S, Gulfport, FL 33711, USA

Dolphin tour from the SkyBeach locationGuide in English · Available from 1 Jan 2027Departure point: 6800 Sunshine Skyway Ln S, St. Petersburg, FL 33711, USA

You'll see the exact price of each option when you check availability.See dates and prices

Before you book

Days and timesNext departure: 1 Jan 2027

Book up to2h before

AgesAdult (13 and older) · Child (3 to 12 years) · Infant (under 3): free

GroupUp to 49

Live guideEnglish

Meeting point and pickupNo hotel pickup: you go to the meeting point. Ends back at the starting point.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.It may be canceled due to bad weather or if the minimum number of travelers isn't reached. If that happens, you're offered another date or a refund.

Prices and times updated yesterday

Good to know

Low physical effortPets welcomeInfants must sit on laps

Operated by Coastal Cruises

Is this one for you?Book this tour if you want to split your time between water and beach: the two dolphin-watching passes give you a real chance to see them, and the island stop lets you actually get in the water and hunt shells instead of just watching from the boat. The fixed three-hour window means you're back by early afternoon and can do something else the same day.

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Top questions

Can children come?

Yes. Ticket types: Child (3 to 12 years); Infant (under 3): free.

What happens if it rains?

It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24 h before the start.

Where does the boat depart from?

The St. Pete Dolphin Watching and Shelling Adventure operates from four locations: Gulfport, SkyBeach, MarineMax, and the main St. Pete marina. You choose your preferred departure point when you book.

What should I bring to Shell Island?

Bring sunscreen, a swimsuit, and a bag or container for shells you find. You're welcome to pack a snack or lunch to eat while the boat is stopped at the island. Outside alcohol is not permitted onboard.

What are the chances of seeing dolphins?

The route follows the intercoastal waterways where dolphins live, and the guide looks for them on both the outbound and return legs. Sightings are common but not guaranteed: weather and time of year affect how active they are.

Is there shade on the boat if I don't want to go ashore?

Yes, the boat has plenty of shaded areas for guests who prefer to stay aboard while the group is at Shell Island. You can relax, watch the coastal views, or ask the crew about the local area and the homes you passed.

Can I bring my service animal?

Service animals are allowed on the St. Pete Dolphin Watching and Shelling Adventure. Infants must sit on an adult's lap during the cruise.