Undersea Expedition: Catalina Island Tour
Overview
Descend 5 feet beneath the surface of one of California’s most extraordinary marine ecosystems, all from the comfort of your own personal porthole in our semi-submersible.
Gaze at Giant Kelp forests rising from the ocean floor as large schools of calico bass, bright orange garibaldi, and the occasional diving cormorant or seal pass by to say hello. The top of the boat always remains above the surface in case you need to head upstairs for some fresh air!
Our captain also offers a harbor cruise on the ride back to the dock so you can look for dolphins and enjoy the ocean breeze while taking in the stunning views of Avalon.
What's Included
- Live commentary on board
- Gratuities
Meeting Location
1 Green Pleasure Pier
Avalon, CA 90704, USA
Detailed check-in instructions, including the exact address, are provided with your booking confirmation.
This activity ends back at the meeting point.
What To Expect
Book Online
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Additional Info
- Confirmation is instant and will be received at time of booking
- Public transportation options are available nearby
- Suitable for all physical fitness levels
- Infants are required to sit on an adult’s lap
- Restrooms are not available while on tour, but are available at the base of the Green Pleasure Pier, so please use before check-in
- Please check your email through [BRAND] for your confirmation number and tour information
- This tour/activity will have a maximum of 20 travelers
Frequently Asked Questions (9)
Q: Will I get seasick on Undersea Expedition: Catalina Island Tour?
Cancellation Policy
Still have questions?
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Activity code: C-13327P6
Traveler Photos
Reviews
Average 4.61 out of 5 stars based on 129 traveler reviews collected by Cool Shore Excursions and partner sites such as Cool Destinations and TripAdvisor
Additional Info
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Frequently Asked Questions (9)
The answers provided below were previously given in response to questions from Cool Shore Excursions customers.
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If you have any doubts about becoming seasick on the water, we recommend taking a Dramamine® Motion Sickness Relief tablet the night before your trip. Some people recommend taking it the night before your cruise and then again that morning so you will not feel so drowsy.
Feb 2023- Live commentary on board.
- Gratuities.
This tour requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund.
Apr 2025There is no minimum age for this tour, so bring your wee one along for an adventure. This tour requires at least one adult to accompany children..
Apr 2025If a date or time is not listed on the calendar, it’s sold out or unavailable for another reason. Support cannot assist further if a date or time is not on the calendar.
If you find a date and time that works for you, book it NOW because things always sell out at this time of year.
Apr 2025Accessibility information for the Undersea Expedition: Catalina Island Tour is as follows:
- Public transportation options are available nearby
- Suitable for all physical fitness levels
Detailed check-in instructions – including meeting point address, Google map, and parking information – for Undersea Expedition: Catalina Island Tour will be included in your confirmation email from Cool Shore Excursions. Please be sure to double and triple check your email address is correct at checkout so this important email makes its way to you!
Mar 2024Once your refund is processed, it usually shows on your card statement within 5–10 business days. The exact timing depends on your bank or card issuer.
Want it sooner? When you cancel, choose Receive a refund to my wallet instead. The credit is in your Wallet straight away and is applied automatically at checkout on your next booking when you’re signed in with the same email. You can see your balance any time in My Wallet.
If you paid part of your booking with Wallet credit, that part always goes back to your Wallet. Trip protection isn’t refundable.
Oct 2026What's Included
- Live commentary on board
- Gratuities
Additional Info
- Confirmation is instant and will be received at time of booking
- Public transportation options are available nearby
- Suitable for all physical fitness levels
- Infants are required to sit on an adult’s lap
- Restrooms are not available while on tour, but are available at the base of the Green Pleasure Pier, so please use before check-in
- Please check your email through Viator for your confirmation number and tour information
- This tour/activity will have a maximum of 20 travelers
