• Location: George Town, Grand Cayman
  • Duration: 60 minutes (approx.)
From USD $ 44.00 View price calendar

Low Price Guarantee

Slip beneath the surface on a 1-hour semi-submarine cruise shore excursion, see a fish feeding show and discover Grand Cayman’s undersea landscape, sunken ships and reefs.  Watch schools of fish pass the semi-submarine’s large windows, and watch for the turtles, barracudas and rays that thrive on the island’s unspoiled coast. Visit a steel schooner that ran aground in 1944, then watch a diver feed fish at the vibrant Cheeseburger Reef; see the massive Balboa freighter that sunk during a 1932 hurricane, and finish your trip at George Town's dock.


  • Grand Cayman semi-submarine shore excursion
  • View tropical marine life and colorful coral reefs
  • Enjoy a fish feeding show right before your eyes
  • Covered by Viator's worry-free policy: guaranteed on-time return to your ship

What You Can Expect

Grand Cayman Shore Excursion: Semi-Submarine and Fish Feeding Show

Semi-Submarine and Fish Feeding Show

Customer Reviews


5 star rating: Highly Recommended January 2018

This was an amazing excursion! The amount of ocean life we saw was spectacular - many, many kinds of fish including barracuda, parrot fish, puffer fish, octopus, stingrays, sea turtle, all kinds of coral. The guide was interesting, knowledgable and fun. The captain did the fish feeding, which was pretty fantastic! We are a family of 14, youngest being 5 years old, and oldest 74 years old - it was great for everyone involved. The excursion is a short walk from the port and there was plenty of shops to go to afterwards that were very convenient. It made for a fantastic and affordable excursion day!

Edward S

5 star rating: Highly Recommended February 2017

This excursion was thoroughly enjoyable in all aspects. Viator was very professional throughout the entire process with the email communication, the directions to their location and the efficiency of the actual tour office on the island. The semi sub was amazing in that the tour guide was extremely knowledgeable and that the reef was incredibly beautiful. You actually felt that you were scuba diving, but you were very comfortably inside. Feeding the fish was amazing. The diver made sure that he came to each window so that all could get a good view. Very enjoyable experience from start to finish!

Joseph O

5 star rating: Highly Recommended December 2015

A nice way to see and appreciate the beautiful marine life without getting wet!


5 star rating: Highly Recommended October 2014

Our entire family (including five kiddos ages 1-11, my husband and I plus my parents) just loved this excursion! We had a fabulous time; it was one of the highlights of our vacation. None of us felt even slightly nauseated, and we all had awesome views. The guide was knowledgeable and friendly.

Linda P

5 star rating: Highly Recommended February 2014

Great to see all the fish and ship wrecks. They were so helpful to my husband since he just had back surgery 6 weeks ago

Jennifer S

5 star rating: Highly Recommended January 2014

The guide was very informative and explained everything in detail and was funny. The "submarine" was clean comfortable and our trip was shared with only one other couple that day. We stumbled upon this trip by accident on line and im so glad we did. Had a blast.

Jack H

5 star rating: Highly Recommended January 2014

We really enjoyed the Simisub tour. I think that may have boosted our courage enough to take a real submarine tour next time! Thanks for adding a highlight to our cruise.

Louise M F

5 star rating: Highly Recommended March 2013

Very nice and great guides

Gerald C

5 star rating: Highly Recommended October 2012

Great time, got some wonderful pictures. Best value out there

Marija F

4 star rating: Recommended April 2018

This trip started with a few hiccups, even though I called the company to confirm our attendance as soon as our ship docked. It seems the booking from Viator didn't go through to them, and then they almost sent us on the wrong excursion because the names for several are similar. Once we finally got that sorted out, we boarded the Seaworld Observatory for our underwater sea adventure. Our host was a charming young man and we saw a few shipwrecks and a number of fish. Unfortunately, no stingrays though - which would have been thrilling. Although no one's fault, I did find this surprising and so did one of the employees with whom I briefly chatted following the tour. About 2/3 through the excursion, we anchored while the captain of the ship donned his scuba diving gear and got into the water to feed bread to the fish. It was cool to see all the fish swarming around him and he made sure to circle the boat so that people on both sides could get a close look. The entire tour lasted less than an hour though and you actually don't venture far from the marina. My own view is that the tour was okay, but my elderly parents really enjoyed themselves and that's why I rated it as a 4 star. I would recommend this to people with young children or to anyone else who's never before had a glimpse of what goes on in the water just below the surface.

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