Water activity

Santa Catalina Island: Nautilus Semi-Submarine Cruise

4.3 / 5

9 reviews

Activity provider: Catalina Adventure Tours

Santa Catalina Island: Nautilus Semi-Submarine Cruise

Activity provider: Catalina Adventure Tours

From US$ 52.73 per person

Hop aboard the Nautilus, a semi-submarine that will take you to a marine sanctuary. Venture on an exploratory mission that is both educational and entertaining. View the fish through your own personal porthole and feed them right from your seat.

About this activity

Free cancellation
Cancel up to 24 hours in advance to receive a full refund
Covid-19 precautions
Special health and safety measures apply. Learn more
Reserve now & pay later
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Duration 45 minutes
Check availability to see starting times.
Live tour guide


  • Explore an underwater sanctuary in a semi-submarine
  • See marine wildlife up close from your own personal explorer's seat
  • Cruise through a kelp forest on an educational mission
  • Interact with the fish through your own porthole and feed them with a specially designed feeding system
Full description
Join the captain and crew and set off on a 45-minute exploratory mission through Lover's Cove, a State Marine Conservation Area sanctuary. Traverse amazing undersea gardens and ocean habitats in a semi-submersible vessel designed after America's first nuclear-powered submarine, the USS Nautilus, on a trip that is both educational and entertaining. Let your imagination descend into the depths of the ocean as you explore the magic and wonder of undersea life on the Nautilus. Venture into the ocean and through the kelp forest in a state-of-the-art vessel. Learn about what you see with the crew and research team, and let them entertain you with their stories. As you learn and explore, interact with the fish through a specially designed feeding system. Launch fish food torpedoes right from your seat (at an additional cost) and instigate feeding frenzies right outside your personal porthole.
  • 45-minute guided semi-submarine cruise
  • Gratuities
  • Ferry to Avalon (needs to be purchased separately)
  • Fish food (available for purchase on board)
Not suitable for
  • People with claustrophobia
  • People with high blood pressure
  • People with motion sickness
Covid-19 precautions
Traveler requirements
  • You are required to bring and wear a mask

Select participants and date



Meeting point

Please meet the local partner at Green Pleasure Pier, Avalon, CA 90704, USA.

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Important information

What to bring

  • Comfortable shoes

Not allowed

  • Pets
  • Food
  • Unaccompanied minors

Know before you go

  • Please note that this cruise departs from Avalon on Santa Catalina Island. You must take the ferry to Avalon prior to boarding this tour
  • Tour participants must be able to transfer to the vessel and walk 12 steep steps down to and up from the seating area
  • For safety reasons, you should be in good health and free from claustrophobia or anxiety symptoms, high blood pressure, motion sickness, or other conditions that could be aggravated by this adventure
  • Children (3-11) and infants (0-2) must be accompanied by an adult
  • Infants (2 and under) are required to have a ticket to ride the semi-submarine
  • All departures are subject to change or cancellation due to weather conditions. Schedules are subject to change without notice
  • If you cancel your tour, you will be given a voucher for the same tour valid for 1 year from the original date of departure
Customer reviews

Overall rating

4.3 /5

based on 9 reviews

Review summary

  • Guide
  • Transportation
  • Value for money

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Such a unique experience. My husband and I travel often and have never done anything like this! They take you to three different spots and you can see the kelp and different fish. Although you do see the same fish and kelp at each spot, it was still pretty awesome to see the fish up that close. I don't foresee myself ever snorkeling or scuba diving, so it was amazing to see the oceanlife. The guide was informative but he was not required to wear a mask, so him coming up to talk to us was a bit unsettling. Also, if you order mobile tickets you are still required to checkin and get your tickets printed. Overall excellent experience and highly recommend if visiting Catalina island!

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September 24, 2021

November 7, 2021

First run of the day was delayed by other bay traffic, which shortened the tour, resulting in one side of the submersible not seeing what the other side saw. However when mentioned the manager said a discount would be given and the teenagers had room to bounce to the other side.

June 17, 2021

Product ID: 254162