Is the semi-submarine activity suitable for children?

Yes, it is family-friendly and offers a safe environment for children of all ages.

How long is the tour?

The tour lasts approximately 1 to 1.5 hours, providing ample time to enjoy the underwater sights.

Wear comfortable clothing, layers if needed, and bring sun protection and a hat for comfort.

No, you stay dry inside the semi-submarine, but outdoor decks may be splashed by waves.

Are there restrooms onboard?

Yes, the vessel is equipped with restrooms for passenger convenience.

Can I bring my own food or drinks?

It's best to check with Catalina Adventure Tours beforehand, as some tours may restrict outside food and drinks.

The Nautilus Semi-Submarine Excursion | Boat Tour in Avalon, California | Boat Tour | Water Activities

Embark on an unforgettable underwater exploration with The Nautilus Semi-Submarine Excursion in Avalon, California. This unique boat tour offers a one-of-a-kind chance to see the vibrant marine life and colorful coral reefs just below the water's surface, all without getting wet. Suitable for all ages, the semi-submarine features a submerged glass viewing deck that provides unobstructed views of the aquatic world around Catalina Island. As you cruise through the clear waters, knowledgeable guides share fascinating insights into the local ecosystem and history, making it both an educational and visually spectacular adventure. Whether you're a wildlife enthusiast or simply seeking a relaxing day on the water, this excursion promises memorable moments and stunning photo opportunities. Perfect for families, couples, or solo travelers, it highlights the beauty and diversity of marine life in Southern California while emphasizing sustainable tourism practices. Prepare for an immersive experience that combines comfort, adventure, and a splash of discovery in Avalon’s picturesque setting. Don't miss the chance to see graceful fish, playful sea lions, and maybe even a distant glimpse of dolphins while exploring this underwater wonderland, making it a must-do activity on your Catalina Island itinerary.

About Catalina Adventure Tours

Catalina Adventure Tours, based in Avalon, California, operates guided tours across Catalina Island that highlight the island’s landscapes, wildlife, and history. The company offers four signature experiences: the Summit Sunset Tour, a one-hour tram ascent aboard The Falcon to 1,500 feet with panoramic views and narrated stories; The Nautilus Semi-Submarine Excursion, a 45-minute underwater observation trip modeled after America's first nuclear submarine with underwater gardens, fish feeding, and seasonal evening missions; the Catalina Island City & Scenic Mt Ada Tour, a 50-minute tram tour aboard The Eagle visiting Mt. Ada and the Catalina Casino; and the Inside Adventure Tour, a two-hour eco-land excursion through canyons and coastline featuring wildlife sightings, the Nature Center, and ancient Native American sites.

Guides on each tour provide educational narration about the island’s ecology, cultural history, and conservation efforts. Tours combine comfortable transport, photographic viewpoints, and opportunities to observe species such as bald eagles and the island’s bison herd. The Nautilus offers a unique underwater perspective while tram tours deliver elevated panoramic vistas.

Catalina Adventure Tours works within Avalon’s visitor infrastructure and supports preservation by educating guests about local ecosystems. Tour durations and clear descriptions help travelers choose the right experience. With professional guides, established routes like Mt. Ada and dependable vessels such as The Falcon, The Eagle, and the Nautilus, the operation presents a reliable, informative way to explore Catalina Island. Tickets are sold at Avalon ticket booths, partner kiosks, and official websites, with schedule updates posted seasonally for visitor planning purposes.