You booked this experience
Make your trip unforgettable

Undersea Expedition: Catalina Island Tour

129 Reviews 4.61 out of 5 stars Based on 129 reviews collected by City Balloon Tours and TripAdvisor | Recommended by 91% of reviewers | Catalina Island, USA
Don't miss out!
On average, this is booked 25 (13.6) days in advance.

45 minutes (approx.)
Mobile ticket
Offered in: English
Instant confirmation

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
See 1 more

Meeting Location

Meeting point

1 Green Pleasure Pier
Avalon, CA 90704, USA

Show on Google Maps

Detailed check-in instructions, including the exact address, are provided with your booking confirmation.

End point

This activity ends back at the meeting point.

What To Expect

Book Online

Our secure website provides real-time availability, instant confirmation.
Read more

Safe & secure Easy breezy Hassle‑free

Catalina Expeditions Tours (pass by)

Boat By
Read more

Green Pleasure Pier (pass by)

Tour starting location Gate C
Read more
Show 1 more stop

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
  • 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?

A: 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. Read more Feb 2023

Cancellation Policy

This tour is non-refundable and cannot be changed for any reason. If you cancel or ask for an amendment, the amount you paid will not be refunded.

Still have questions?

We're here to help.
Activity code: C-13327P6

Traveler Photos

Reviews

4.61
129 reviews

Average 4.61 out of 5 stars based on 129 traveler reviews collected by City Balloon Tours and partner sites such as Cool Destinations and TripAdvisor

5 stars
99
4 stars
18
3 stars
7
2 stars
2
1 star
3
Don't miss out!
On average, this is booked 25 (13.6) days in advance.

Similar Tours & Activities

Catalina Island Ultimate Underwater and Coastal Adventure Cruise

Avalon’s ultimate all-in-one ocean adventure. This 55-minute experience combines underwater viewing and coastal cruising off Catalina Island—featuring immersive viewing undersea windows, live fish feeding from …More

Avalon’s ultimate all-in-one ocean adventure. This 55-minute experience combines underwater viewing and coastal cruising off Catalina Island—featuring immersive viewing undersea windows, live fish feeding from...

55 minutes Free Cancellation
4.3 (27)
from
$50

Walking History Tour on Catalina Island

Avalon History Tours is a small family-owned business located on Catalina Island. We offer an authentic and immersive experience led by knowledgeable guides who are …More

Avalon History Tours is a small family-owned business located on Catalina Island. We offer an authentic and immersive experience led by knowledgeable guides who are...

45 to 90 minutes Free Cancellation
5.0 (23)
from
$40

Catalina Island Private Guided Golf Cart Tour of Avalon

Catalina Island’s original custom guided golf cart tour! Explore Avalon through the eyes of a local. With us you will learn about the history of …More

Likely to Sell Out
Likely to Sell Out

Catalina Island’s original custom guided golf cart tour! Explore Avalon through the eyes of a local. With us you will learn about the history of...

2 hours Hotel pickup offered Free Cancellation
4.9 (648)
from
$303

Journey to Frog Rock

A fun, natural history paddling tour where you can imagine exploring the inaccessible coastline of the Catalina Island in a modern, easy to maneuver & …More

5.0 (18)

Journey to Frog Rock

5.0 (18)

A fun, natural history paddling tour where you can imagine exploring the inaccessible coastline of the Catalina Island in a modern, easy to maneuver &...

2 hours
5.0 (18)
from
$83

Travelers Who Bought This Tour Also Bought

Yellow Semi-Submarine Tour of Catalina Island From Avalon

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 …More

Likely to Sell Out
Likely to Sell Out

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...

45 minutes Free Cancellation
4.5 (595)
from
$64

Catalina Summit and Bison Safari

Spectacular canyons, a scenic coastline, and an unspoiled countryside alive with native plants and wildlife will take your breath away on this two-hour guided eco-land …More

Likely to Sell Out
Likely to Sell Out

Spectacular canyons, a scenic coastline, and an unspoiled countryside alive with native plants and wildlife will take your breath away on this two-hour guided eco-land...

2 hours Free Cancellation
4.4 (509)
from
$89

Glass Bottom Boat: Catalina Island Tour

Step aboard the Glass Bottom Boat Voyage! Just beneath your feet, the boat has a glass floor so you can see Catalina’s crystal-clear water teeming …More

Likely to Sell Out
Likely to Sell Out

Step aboard the Glass Bottom Boat Voyage! Just beneath your feet, the boat has a glass floor so you can see Catalina’s crystal-clear water teeming...

45 minutes
4.7 (92)
from
$32

Catalina Island Private Guided Golf Cart Tour of Avalon

Catalina Island’s original custom guided golf cart tour! Explore Avalon through the eyes of a local. With us you will learn about the history of …More

Likely to Sell Out
Likely to Sell Out

Catalina Island’s original custom guided golf cart tour! Explore Avalon through the eyes of a local. With us you will learn about the history of...

2 hours Hotel pickup offered Free Cancellation
4.9 (648)
from
$303

What's Included

Activity name

  • Live commentary on board
  • Gratuities

Additional Info

Activity name

  • 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

Report Product Issue

Activity name