About This Tour
Come face-to-face with Catalina's abundant marine life on this 45-minute underwater excursion. Cruise five feet below the surface in a spacious, climate-controlled cabin with a live guide suggesting salient points of interest. Every passenger has their own seat and port hole but you are also free to roam around the cabin for other viewpoints.
Photo Gallery
View from the cabin, below the waterline
TopTours Insights
Undersea Expedition: Catalina Island Tour
This 45-minute Undersea Expedition by Santa Catalina Island Company offers a unique perspective on marine life from inside a glass-bottom boat. It's well-suited for families with children or anyone seeking a calm, accessible way to observe the underwater world without getting wet.
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What's Included
What's Not Included
Additional Information
Meeting Point
Line C, left hand side of the Pier.
Special Instructions
Must arrive 15 mins prior to tour time on the Green Pier Line C. All sales are final, and any rescheduling must be done one day in advance. Please call 1-877-778-8322 if you need any information regarding your tour.
Cancellation Policy
All sales are final. No refund is available for cancellations.
✓ Free cancellation due to bad weather
Tour Operator
Santa Catalina Island Company
Official supplier for this experience. Bookings are handled directly through Viator with verified partners.
Viator Certified
Trusted local operator
Guest Ratings
Total review count and overall rating based on Viator and Tripadvisor reviews
Based on 104 verified reviews
Average rating
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Frequently Asked Questions
Common questions about Undersea Expedition: Catalina Island Tour
Who operates this experience?
This experience is operated by Santa Catalina Island Company, a local water sports provider.
What's included?
This tour includes Live commentary on board. All inclusions are provided by the tour operator.
How long is this tour?
The experience lasts approximately 45 minutes, giving you time to fully enjoy your chosen activity.
Can I cancel this tour?
If weather conditions are unsafe, the tour may be canceled by the operator. In such cases, you'll be offered a refund or reschedule.
What should I bring?
We recommend bringing a swimsuit, towel, and sunscreen. All necessary equipment is provided by the tour operator.
Will I receive instant confirmation?
Yes, you'll receive instant confirmation when you book.
Is this tour worth it?
Yes, this experience has a 4.4-star rating based on 104+ reviews, making it a highly rated option.
What to expect on this tour?
This water sports experience lasts approximately 45 minutes and includes all necessary equipment and guidance. You'll have access to Live commentary on board.
What's the best time to do this tour?
Morning and early afternoon are typically the best times for water activities, as conditions are usually calmer and visibility is better.
Do I need to know how to swim?
Swimming ability requirements vary. Life jackets and safety equipment are provided. Please check the tour details or contact the operator if you have concerns about swimming requirements.
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Book Undersea Expedition: Catalina Island Tour
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