Sea Thunder - Myrtle Beach Dolphin Cruises in North Myrtle Beach, SC

Myrtle Beach Watersports Sea Thunder1568 Watson AvenueLittle River, SC 29566
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TripAdvisor user rating 4.50 out of 5 Based on 264 reviews


For an exhilarating dolphin tour, get your tickets for Sea Thunder. This turbocharged boat boasts 2100 horsepower and can hold approximately 141 passengers. Get ready for remarkable ocean views and exciting dolphin watching on this memorable cruise. When the captain gives you the signal, you’re free to walk around the boat and find the best views! Canopy seating available.

up to 2 hrs 1 or more people

Good To Know

from Ashley, one of our Little River Travel Experts
  • You will get wet. Dress accordingly.
  • A dry box is available on the boat for valuables.
  • For seating under the canopy, arrive early as seating is by groups.
  • Check-in 30-45 minutes before departure for an earlier boarding group.
  • The Sea Thunder boat holds approximately 141 passengers.


from Sea Thunder- Myrtle Beach Dolphin Cruises
Come join the best dolphin tour in Myrtle Beach. The Sea Thunder is a 65-foot 1997 Aqua Bay Marine tour boat powered by turbocharged Cat Diesels, totaling 2100 horsepower. The Sea Thunder holds approximately 141 passengers. Everyone is able to sit and when the Captain gives the okay you are able to walk around. There is a canopy over several rows of seats on both of the boats.

Cruises are 1½ to 2 hours long. The tour encompasses 3 distinct experiences starting with a narrated cruise up the Intracoastal waterway. Then picking up speed and passing several uninhabited islands as well as the jetty heading out into the ocean. The second part of the tour is heading into the ocean to find and view the dolphins and the third part is picking up speed to view the beautiful coastline.

Sea Thunder- Myrtle Beach Dolphin Cruises Reviews

4 Reviews
Carol McIntosh Tripster User Profile Image
Carol McIntosh
Akron , OH
1 Review
Verified Traveler
"Less than good"
July 2019
We were canceled on 2 different days then had to be rescheduled with another company, was notified less than 12 hours the second time
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Robert Garner Tripster User Profile Image
Robert Garner
1 Review
"Best boat ride ever!!!!!"
June 2019
The captain and Mate were amazing. I observed his knowledge of the water and courtesy for other boaters. We were able to see numerous dolpins and a possible hammerhead shark. Overall this was an amazing experience and highly recommend.. even though someone hit our truck in the parking lot.
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Tip: You are going to get wet!!!!!

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Jenny Wright Tripster User Profile Image
Jenny Wright
Tully, NY
2 Reviews
Verified Traveler
"Great customer service"
August 2018
My family and I went on the Sea Thunder at the end of July. Since the weather that week had not been great the captain wasn't able to find any dolphins after many attempts. We were disappointed but they gave every group on the boat a card and a text with a coupon code that will allow us to make a reservation for free for the same number of people. We can go back for free as many times as necessary until we see dolphins. I think this is great. Other than no dolphins the boat ride was fun and you get soaked.
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Tip: Try to go during nice weather.

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Wallace Berry Tripster User Profile Image
Wallace Berry
Lawrenceville, GA
3 Reviews
Verified Traveler
"Sea Thunder not so much"
June 2018
While I planned to get to the location an hour ahead of time, plans change with 3 small kids, plus the rotating bridge delayed us getting across on time. So, we were there 30 minutes ahead of time; that meant that we were placed in the last group and we had to sit in the back where the seating is cramped and you cannot see ahead. We were booked for the Sea Thunder but they apparently had a mechanical or other issue and we had to ride on the Sea Screamer, neither of which ever really went very fast. My nephews were pretty bored with the whole thing (ages 6, 7 and 11). It was a pleasant enough ride out to the ocean but I would probably not do it again. The captain tried to find some dolphins for us but we only saw them above the water very briefly a few times. I was disappointed that the kids did not get a seat by the side of the boat or in front. We would have a much, much better time on my boat at the lake. Also, I dislike being asked for tips when I'm already spending a small fortune on my family vacation.
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Tip: You should probably be there at least an hour and a half ahead of time, so you can maybe sit in front, or at least on the side nearest the water. It's a pretty slow ride so, if you are looking for something fast, this is not it. It's hard to get good photos with all of the people packed into the boat (around 150). They will ask for a tip at the end and tell you the mate only works for tips. Nice guys but I find that offensive.

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Frequently Asked Questions about Sea Thunder- Myrtle Beach Dolphin Cruises

Where do I check-in?

GPS Address: 1568 Watson Avenue, Little River, SC 29566. Square Grouper Marina will be on the left side of Watson Avenue. After parking, look for the Myrtle Beach Watersports sign for check-in and boarding pass.

Will I get wet on this cruise?

Yes. It is likely. Please dress accordingly. It is recommended that passengers bring a light jacket, as well.

Do I need to bring anything on the cruise?

Guests must have their boarding pass (received at check-in) to board the boat. In addition, it is recommended that guests bring the following items: Sunglasses Sunscreen Comfortable boat footwear Valid ID for check-in Camera Phone

How long is the tour?

The tour is approximately 1.5 to 2 hours long.

When should I check-in?

It is recommended that passengers check-in at the restaurant 30-45 minutes prior to tour departure. The boat is boarded by group number. The earlier you check-in, the better seating you receive.

Is parking available?

Yes. Parking is on the left side of Watson Avenue for Square Grouper Marina. Look for the Myrtle Beach Watersports sign.

Does the cruise operate rain or shine?

Yes. In the case that your cruise is cancelled due to extreme weather, please follow instructions given by the crew and staff.