Available languages
45 minutes
Mobile ticket
Come aboard Catalina Island's newest semi-submarine, the SS Nautilus, and enjoy a deep sea adventure 1,000 leagues beyond your imagination. The main attraction of this unique vessel allows six feet underwater viewing while staying dry so eager seafarers can get up close and face-to-face with schools of fish anticipating treats fired away from custom designed fish food torpedo buttons. Designed after America's first nuclear powered submarine, the USS Nautilus, the 45-minute journey is the destination itself as our captain and his crew ventures out on an exploratory mission to the undersea gardens of Avalon Bay.
Service animals allowed
Public transportation options are available nearby
Infants are required to sit on an adult’s lap
Suitable for all physical fitness levels
We are located on Catalina Island, You must secure transportation to the island to take the tour. There are no refunds if you miss the tour
Not wheelchair accessible. Due to uneven surfaces, this tour is not recommended for those with walking disabilities or using a wheelchair
Your tickets will be held at the will-call window for collection on the day of the tour.
Children must be accompanied by an adult
Infants (2 years old and under) must be ticketed on a USCG vessel; fare is free-of-charge but fees apply
You MUST arrive 15 minutes prior to boarding to check in. We leave promptly at the scheduled time and cannot wait. When booking travel to the island please make sure to give enough time from arrival to island to get to tour departure location.
Late Policy: The Nautilus expedition departs from only one location. If you arrive late, we are not able to provide you with a refund. Our tours are scheduled to provide you with the best experience possible, and we are not able to make any exceptions if you are late.
For a full refund, cancel at least 24 hours before the scheduled departure time.
English guide
Fish food offered at additional charge during tour. Cash only.
Travel To Catalina Island is not included in ticket price. Tour is located on Catalina Island.
Transportation needed by Ferry to Island -Catalina express or Newport Flyer to get to Island.
Catalina Adventure Tours
Explore the Catalina Island's amazing undersea gardens by venturing on an exploratory mission aboard the semi-submersible SS Nautilus. Designed after the USS Nautilus, America's first nuclear powered submarine, this 45-minute 6-feet underwater journey departs from the Green Pier and will cruise to a marine preserved sanctuary known as the Lovers' Cove. Equipped with torpedo buttons, adventurers can create a feeding frenzy right from their viewing porthole for an additional charge. On the way back to the marina, enjoy breathtaking harbor views on the top deck of the submarine. Weather permitting, undersea garden tours depart hourly year round from mid-morning until an hour before sunset. **we highly suggest you secure transportation to Catalina island prior to booking tour to confirm you can get to the tour as the boat to the island sells out quickly. Catalina Express or Newport Flyer for your transportation needs.
469 reviews
Total reviews and rating from Viator & Tripadvisor
Sacha H,
Aug 8, 2025
- Viator
It was fun and entertaining. we enjoyed our experience in the submarine. The fish are up close and beautiful.
Amber A,
Aug 6, 2025
- Viator
This was an amazing tour! You see so many fish and kelp forests and the kids thought the food torpedo was the best thing ever! We went on a submarine tour in Hawaii and it wasn’t nearly as exciting as this one. Highly recommmend.
bekaaf,
Aug 5, 2025
- Viator
Fun way to take a peak under the sea without getting wet! We saw Garabaldi, a manta ray, opal eye, grouper and a few other fish. The kids loved feeding the fish, although there was an extra charge.
Sue C,
Aug 5, 2025
- Viator
We loved it! It was great. I am coming back with my grandkids. The crew was excellent, I learned alot of new things about the fish in that area. I truly recommend this outing!!
Gopal K,
Aug 2, 2025
- Viator
It was really cool experience. if you plan to feed the fish, get the 20$ package and use it wisely. there are 3 stops in total. we were not informed at the start and used up all food in stop 1.
Operated by Catalina Adventure Tours