Book Your Trip
- Things to Do
- Land Tours
- Zip Line Eco Tour
- 125th Anniversary Tours
- East End Adventure
- Avalon Scenic Drive
- Skyline Drive
- Bison Expedition
- Catalina Aerial Adventure
- Inland Expedition
- Rock Climbing Wall
- Falconry Experience
- Hiking / Walking
- Ocean Tours
- Discover Two Harbors
- Undersea Expedition
- Ocean Expedition
- Glass Bottom Boat
- Flying Fish Voyage
- Fishing
- SCUBA
- Descanso Beach Club
- Cabana Rentals
- Beach Parties & Happy Hour
- Events
- Catalina Casino Tours
- Discover the Casino
- Behind the Scenes
- Twilight at the Casino
- Avalon Theatre
- Shopping
- Avalon General Store
- Island Spa Shoppe
- Catalina Gift Cards
- Golf
- Catalina Island Golf Course
- Golf Gardens
- Two Harbors
- Visitor Services
- Two Harbors Annual Events
- Independence Day Celebration in Two Harbors
- Wine Festival
- Microbrew Festival
- Buccaneer Days
- General Store
- Pre-Order
- Outdoor Activities
- Harbor Sands
- Safari Bus
- Hiking & Backpacking
- Biking
- Disc Golf
- Water Activities
- Shore Boat
- Dive & Recreation Center
- Fishing Skiffs
- SCUBA
- Kayaking
- Snorkeling
- Two Harbors Boating
- Two Harbors Mooring Special
- Mooring Sites
- Mooring Around Two Harbors
- Mooring Info & Rules
- Mooring Reservations & Fees
- Boat-In Camping
- Land & Marine Services
- Course Settings
- Marine Preservation
- Lodging
- Avalon
- Pavilion Hotel
- Hotel Atwater
- Mt Ada
- Guest Rooms at Mt Ada
- ADA Features
- Two Harbors
- Banning House Lodge
- Villa Santa Rosa
- Villa Santa Cruz
- Specials
- Camping
- Two Harbors Camping
- Little Harbor
- Two Harbors
- Bahia Azul
- Brisa Del Mar
- Catalina Cabins
- Avalon Camping
- Hermit Gulch
- Primitive Camping
- Blackjack
- Parsons Landing
- Camping Guidelines & FAQs
- Rental Gear Supplies
- Packages
- Lodging
- Best of Fall & Winter
- Get Away Your Way
- Helicopter & Hotel
- Boat & Hotel
- Romance Package
- The Unwinder
- Up & Away
- Boat & Banning House Lodge
- Activities & Adventures
- Ship & Zip
- Zip & Relax
- Seasonal & Special Events
- New Year's Eve
- Best of Fall & Winter
- Camping & Boating
- Spa Packages
- The Unwinder
- Day at the Spa
- Zip & Relax
- Romance Package
- Dining
- Avalon
- Avalon Grille
- Descanso Beach Club
- Descanso Fresh
- Lunch at Mt Ada
- Bistro at the Atwater
- Catering
- Two Harbors
- Harbor Sands
- Harbor Reef Restaurant
- Harbor Reef Saloon
- West End Galley
- Isthmus Picnic Sites
- Island Spa
- Spa Treatment Menu
- Sand Therapy
- Price List
- Request a Treatment
- Wellness Studio
- Fitness Schedule
- Spa Shoppe
- Packages
- Zip & Relax
- The Unwinder
- Day at the Spa
- Romance Package
- Suite Experiences
- Suite Treatments
- Encanto Café
- Gift Cards
- About the Island
- Blog
- History
- Catalina Island Casino
- Island Guide
- Avalon
- Two Harbors
- Tour Plaza
- Pleasure Pier
- Weather
- Beaches
- Blog
- E-Newsletter
- Media Gallery
- Photo Gallery
- Casino Webcam
- Two Harbors Webcam
- Transportation & Maps
- Maps
- Getting Here
- Getting Around
- Points of Interest
- El Rancho Escondido
- Catalina Island Museum
- Wrigley Memorial & Botanical Gardens
- Civil War Barracks
- Airport in the Sky
- Banning House Lodge
- Catalina Visitors Country Club
- Mt Ada
- Press Releases
- About Catalina Island Company
- Social Media
Undersea Expedition
Explore the Wonders of Lover's Cove Marine Preserve
Come face-to-face with Catalina’s abundant marine life aboard the Sea Wolf Semi-Submersible, as you cruise five feet below the surface in a spacious, climate-controlled cabin. Every passenger has their own seat and port hole. Plus, you’re free to roam about the cabin to enjoy other viewpoints.
Catalina's marine environment is considered one of the healthiest in the world. You’ll see an incredible array of undersea creatures, including bright orange Garibaldi, spotted calico bass, urchins, rock fish, and bat rays, just to name a few. This is more than a tour; it’s an undersea adventure.
Advance reservations are recommended. Book this adventure online more than seven days in advance and receive 15% off adult tickets. Just select the Online 7+ Days Advance Purchase Price in the booking window.
OR CALL 800.626.1496
Pricing
Adults: $39.95
Children (2-11), Seniors (55+), Veterans & Active Military: $37.95
Duration
45 minutes
Seasonal Information
Year-round.
Save 15%
Save 15% on adult tickets, when you book online more than seven days in advance. Select Online 7+ Days Advance Purchase Price in booking window.
Disclaimer
Tours and times are subject to change. Prices are subject to change without notice and do not include Avalon City Admissions Tax or Harbor Use Fees.
