Catalina Island: Day Trip with Undersea Sub Expedition

Begin a semi-submarine tour and explore undersea Catalina life. Includes ferry, optional city tour and hotel pickup.

9 hrs 30 mins

Free cancellation

Instant confirmation

Mobile ticket

From $247

Why book with us?

From $247

Why book with us?

Summarised reviews

Catalina Island: Day Trip with Undersea Sub Expedition is available to book on tickadoo. No visitor ratings yet.

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Summarised reviews

Catalina Island: Day Trip with Undersea Sub Expedition is available to book on tickadoo. No visitor ratings yet.

Customer reviews

How do we collect reviews?

Summarised reviews

Catalina Island: Day Trip with Undersea Sub Expedition is available to book on tickadoo. No visitor ratings yet.

Customer reviews

How do we collect reviews?

Summarised reviews

Catalina Island: Day Trip with Undersea Sub Expedition is available to book on tickadoo. No visitor ratings yet.

Customer reviews

How do we collect reviews?

Highlights and inclusions

Highlights

  • Experience marine life on a semi-submersible adventure

  • See dynamic fish and sea creatures up close

  • Upgrade with the Discover Avalon city tour for a deeper Catalina experience

  • Enjoy a climate-controlled viewing cabin underwater

  • Includes roundtrip Catalina Express ferry

What’s Included

  • Hotel pickup and drop-off from selected hotels

  • Roundtrip Catalina Express ferry ticket

  • 40-minute semi-submersible vessel tour

  • Optional 40-minute Avalon tour

About

Discover Catalina Island’s Underwater Wonders

Begin your Catalina Island day trip with a comfortable roundtrip ferry ride across the Pacific to this famous getaway. Once on the island, step aboard a climate-controlled semi-submersible vessel and descend five feet below the surface to watch Catalina’s underwater scenery through wide viewing windows. See a dazzling variety of marine life including garibaldi, calico bass, rockfish, bat rays and sea urchins as they glide past your window.

Your Undersea Sub Expedition

This unique vessel lets you experience the undersea environment without getting wet. As you cruise, expert guides will point out the abundant sea creatures that live in the kelp forests and rocky coves around Catalina. Feedings outside the windows attract even more active marine life for close-up viewing and photo opportunities. The smooth ride and clear narration make the adventure ideal for families or curious travelers of all ages.

Upgrade: Add the Discover Avalon Tour

For a fuller experience, pair your undersea expedition with the Discover Avalon tour. This land-based excursion covers seven and a half miles and offers insights into Catalina’s history, its distinctive architecture and scenic viewpoints around the colorful town of Avalon. It’s a great way to round out your day with a mix of sea and land experiences, offering opportunities for memorable photos and a deeper appreciation of the island’s charm.

Smooth Experience

Your adventure is designed for comfort and convenience with hotel pickup available from selected locations in Los Angeles. All transportation and tour tickets are included, leaving you free to relax and enjoy the island’s beauty. The semi-submersible tour lasts about 40 minutes, and the optional Discover Avalon tour also lasts approximately 40 minutes, making this a perfectly paced day out.

What You’ll See

  • Thriving schools of local fish and curious bat rays

  • Beautiful kelp forests through underwater windows

  • Historic and modern Avalon landmarks

  • Expert local commentary throughout both tours

Tips for Your Visit

Visitor guidelines
  • Arrive promptly at your pickup location

  • Follow crew and guide instructions at all times

  • Do not bring large bags into the semi-submersible

  • Remain seated while the vessel is in motion

FAQs

What is the undersea submarine expedition on Catalina?

You board a semi-submarine that descends below the surface of Catalina's clear waters to view marine life through large viewing windows without getting wet.

How deep does the Catalina submarine go?

The semi-submarine brings passengers about 5-10 feet below the surface, enough to see kelp forests, colorful fish, and the rocky ocean floor clearly.

Do I need to know how to swim for the submarine tour?

No swimming is required. You stay dry inside the fully enclosed submarine cabin throughout the experience.

What marine life will I see from the submarine?

Common sightings include garibaldi fish, kelp bass, sea stars, sea urchins, and dense kelp forests. Seasonal visitors include sea lions and rays.

How long is the submarine portion of the trip?

The submarine tour runs approximately 45 minutes, giving you extended viewing time as the vessel moves slowly along the coastline.

Is the submarine suitable for children?

Yes, kids love the submarine experience. It is safe, dry, and educational, making it one of the most popular family activities on Catalina.

Does the day trip package include the ferry?

Yes, round-trip ferry transportation from the mainland to Catalina Island is included along with the submarine excursion.

Will I have time to explore Avalon?

Yes, the package includes free time in Avalon for shopping, dining, and walking along the waterfront before or after the submarine tour.

Is the submarine experience claustrophobic?

The cabin has large viewing windows and is well-lit. Most passengers find it comfortable. If you have severe claustrophobia, consider this before booking.

What time does the ferry leave to return to the mainland?

Return ferry times are set and included in your itinerary. Your booking confirmation lists the scheduled departure time from Avalon.

Know before you go
  • Bring a camera to capture undersea and Avalon sights

  • Arrive early for hotel pickup if included

  • Not wheelchair accessible

  • Food and drinks are not included

  • ID may be required for ticket collection

Cancelation policy

Free cancellation up to 24 hours before the experience

Highlights and inclusions

Highlights

  • Experience marine life on a semi-submersible adventure

  • See dynamic fish and sea creatures up close

  • Upgrade with the Discover Avalon city tour for a deeper Catalina experience

  • Enjoy a climate-controlled viewing cabin underwater

  • Includes roundtrip Catalina Express ferry

What’s Included

  • Hotel pickup and drop-off from selected hotels

  • Roundtrip Catalina Express ferry ticket

  • 40-minute semi-submersible vessel tour

  • Optional 40-minute Avalon tour

About

Discover Catalina Island’s Underwater Wonders

Begin your Catalina Island day trip with a comfortable roundtrip ferry ride across the Pacific to this famous getaway. Once on the island, step aboard a climate-controlled semi-submersible vessel and descend five feet below the surface to watch Catalina’s underwater scenery through wide viewing windows. See a dazzling variety of marine life including garibaldi, calico bass, rockfish, bat rays and sea urchins as they glide past your window.

Your Undersea Sub Expedition

This unique vessel lets you experience the undersea environment without getting wet. As you cruise, expert guides will point out the abundant sea creatures that live in the kelp forests and rocky coves around Catalina. Feedings outside the windows attract even more active marine life for close-up viewing and photo opportunities. The smooth ride and clear narration make the adventure ideal for families or curious travelers of all ages.

Upgrade: Add the Discover Avalon Tour

For a fuller experience, pair your undersea expedition with the Discover Avalon tour. This land-based excursion covers seven and a half miles and offers insights into Catalina’s history, its distinctive architecture and scenic viewpoints around the colorful town of Avalon. It’s a great way to round out your day with a mix of sea and land experiences, offering opportunities for memorable photos and a deeper appreciation of the island’s charm.

Smooth Experience

Your adventure is designed for comfort and convenience with hotel pickup available from selected locations in Los Angeles. All transportation and tour tickets are included, leaving you free to relax and enjoy the island’s beauty. The semi-submersible tour lasts about 40 minutes, and the optional Discover Avalon tour also lasts approximately 40 minutes, making this a perfectly paced day out.

What You’ll See

  • Thriving schools of local fish and curious bat rays

  • Beautiful kelp forests through underwater windows

  • Historic and modern Avalon landmarks

  • Expert local commentary throughout both tours

Tips for Your Visit

Visitor guidelines
  • Arrive promptly at your pickup location

  • Follow crew and guide instructions at all times

  • Do not bring large bags into the semi-submersible

  • Remain seated while the vessel is in motion

FAQs

What is the undersea submarine expedition on Catalina?

You board a semi-submarine that descends below the surface of Catalina's clear waters to view marine life through large viewing windows without getting wet.

How deep does the Catalina submarine go?

The semi-submarine brings passengers about 5-10 feet below the surface, enough to see kelp forests, colorful fish, and the rocky ocean floor clearly.

Do I need to know how to swim for the submarine tour?

No swimming is required. You stay dry inside the fully enclosed submarine cabin throughout the experience.

What marine life will I see from the submarine?

Common sightings include garibaldi fish, kelp bass, sea stars, sea urchins, and dense kelp forests. Seasonal visitors include sea lions and rays.

How long is the submarine portion of the trip?

The submarine tour runs approximately 45 minutes, giving you extended viewing time as the vessel moves slowly along the coastline.

Is the submarine suitable for children?

Yes, kids love the submarine experience. It is safe, dry, and educational, making it one of the most popular family activities on Catalina.

Does the day trip package include the ferry?

Yes, round-trip ferry transportation from the mainland to Catalina Island is included along with the submarine excursion.

Will I have time to explore Avalon?

Yes, the package includes free time in Avalon for shopping, dining, and walking along the waterfront before or after the submarine tour.

Is the submarine experience claustrophobic?

The cabin has large viewing windows and is well-lit. Most passengers find it comfortable. If you have severe claustrophobia, consider this before booking.

What time does the ferry leave to return to the mainland?

Return ferry times are set and included in your itinerary. Your booking confirmation lists the scheduled departure time from Avalon.

Know before you go
  • Bring a camera to capture undersea and Avalon sights

  • Arrive early for hotel pickup if included

  • Not wheelchair accessible

  • Food and drinks are not included

  • ID may be required for ticket collection

Cancelation policy

Free cancellation up to 24 hours before the experience

Highlights and inclusions

Highlights

  • Experience marine life on a semi-submersible adventure

  • See dynamic fish and sea creatures up close

  • Upgrade with the Discover Avalon city tour for a deeper Catalina experience

  • Enjoy a climate-controlled viewing cabin underwater

  • Includes roundtrip Catalina Express ferry

What’s Included

  • Hotel pickup and drop-off from selected hotels

  • Roundtrip Catalina Express ferry ticket

  • 40-minute semi-submersible vessel tour

  • Optional 40-minute Avalon tour

About

Discover Catalina Island’s Underwater Wonders

Begin your Catalina Island day trip with a comfortable roundtrip ferry ride across the Pacific to this famous getaway. Once on the island, step aboard a climate-controlled semi-submersible vessel and descend five feet below the surface to watch Catalina’s underwater scenery through wide viewing windows. See a dazzling variety of marine life including garibaldi, calico bass, rockfish, bat rays and sea urchins as they glide past your window.

Your Undersea Sub Expedition

This unique vessel lets you experience the undersea environment without getting wet. As you cruise, expert guides will point out the abundant sea creatures that live in the kelp forests and rocky coves around Catalina. Feedings outside the windows attract even more active marine life for close-up viewing and photo opportunities. The smooth ride and clear narration make the adventure ideal for families or curious travelers of all ages.

Upgrade: Add the Discover Avalon Tour

For a fuller experience, pair your undersea expedition with the Discover Avalon tour. This land-based excursion covers seven and a half miles and offers insights into Catalina’s history, its distinctive architecture and scenic viewpoints around the colorful town of Avalon. It’s a great way to round out your day with a mix of sea and land experiences, offering opportunities for memorable photos and a deeper appreciation of the island’s charm.

Smooth Experience

Your adventure is designed for comfort and convenience with hotel pickup available from selected locations in Los Angeles. All transportation and tour tickets are included, leaving you free to relax and enjoy the island’s beauty. The semi-submersible tour lasts about 40 minutes, and the optional Discover Avalon tour also lasts approximately 40 minutes, making this a perfectly paced day out.

What You’ll See

  • Thriving schools of local fish and curious bat rays

  • Beautiful kelp forests through underwater windows

  • Historic and modern Avalon landmarks

  • Expert local commentary throughout both tours

Tips for Your Visit

Know before you go
  • Bring a camera to capture undersea and Avalon sights

  • Arrive early for hotel pickup if included

  • Not wheelchair accessible

  • Food and drinks are not included

  • ID may be required for ticket collection

Visitor guidelines
  • Arrive promptly at your pickup location

  • Follow crew and guide instructions at all times

  • Do not bring large bags into the semi-submersible

  • Remain seated while the vessel is in motion

FAQs

What is the undersea submarine expedition on Catalina?

You board a semi-submarine that descends below the surface of Catalina's clear waters to view marine life through large viewing windows without getting wet.

How deep does the Catalina submarine go?

The semi-submarine brings passengers about 5-10 feet below the surface, enough to see kelp forests, colorful fish, and the rocky ocean floor clearly.

Do I need to know how to swim for the submarine tour?

No swimming is required. You stay dry inside the fully enclosed submarine cabin throughout the experience.

What marine life will I see from the submarine?

Common sightings include garibaldi fish, kelp bass, sea stars, sea urchins, and dense kelp forests. Seasonal visitors include sea lions and rays.

How long is the submarine portion of the trip?

The submarine tour runs approximately 45 minutes, giving you extended viewing time as the vessel moves slowly along the coastline.

Is the submarine suitable for children?

Yes, kids love the submarine experience. It is safe, dry, and educational, making it one of the most popular family activities on Catalina.

Does the day trip package include the ferry?

Yes, round-trip ferry transportation from the mainland to Catalina Island is included along with the submarine excursion.

Will I have time to explore Avalon?

Yes, the package includes free time in Avalon for shopping, dining, and walking along the waterfront before or after the submarine tour.

Is the submarine experience claustrophobic?

The cabin has large viewing windows and is well-lit. Most passengers find it comfortable. If you have severe claustrophobia, consider this before booking.

What time does the ferry leave to return to the mainland?

Return ferry times are set and included in your itinerary. Your booking confirmation lists the scheduled departure time from Avalon.

Cancelation policy

Free cancellation up to 24 hours before the experience

Highlights and inclusions

Highlights

  • Experience marine life on a semi-submersible adventure

  • See dynamic fish and sea creatures up close

  • Upgrade with the Discover Avalon city tour for a deeper Catalina experience

  • Enjoy a climate-controlled viewing cabin underwater

  • Includes roundtrip Catalina Express ferry

What’s Included

  • Hotel pickup and drop-off from selected hotels

  • Roundtrip Catalina Express ferry ticket

  • 40-minute semi-submersible vessel tour

  • Optional 40-minute Avalon tour

About

Discover Catalina Island’s Underwater Wonders

Begin your Catalina Island day trip with a comfortable roundtrip ferry ride across the Pacific to this famous getaway. Once on the island, step aboard a climate-controlled semi-submersible vessel and descend five feet below the surface to watch Catalina’s underwater scenery through wide viewing windows. See a dazzling variety of marine life including garibaldi, calico bass, rockfish, bat rays and sea urchins as they glide past your window.

Your Undersea Sub Expedition

This unique vessel lets you experience the undersea environment without getting wet. As you cruise, expert guides will point out the abundant sea creatures that live in the kelp forests and rocky coves around Catalina. Feedings outside the windows attract even more active marine life for close-up viewing and photo opportunities. The smooth ride and clear narration make the adventure ideal for families or curious travelers of all ages.

Upgrade: Add the Discover Avalon Tour

For a fuller experience, pair your undersea expedition with the Discover Avalon tour. This land-based excursion covers seven and a half miles and offers insights into Catalina’s history, its distinctive architecture and scenic viewpoints around the colorful town of Avalon. It’s a great way to round out your day with a mix of sea and land experiences, offering opportunities for memorable photos and a deeper appreciation of the island’s charm.

Smooth Experience

Your adventure is designed for comfort and convenience with hotel pickup available from selected locations in Los Angeles. All transportation and tour tickets are included, leaving you free to relax and enjoy the island’s beauty. The semi-submersible tour lasts about 40 minutes, and the optional Discover Avalon tour also lasts approximately 40 minutes, making this a perfectly paced day out.

What You’ll See

  • Thriving schools of local fish and curious bat rays

  • Beautiful kelp forests through underwater windows

  • Historic and modern Avalon landmarks

  • Expert local commentary throughout both tours

Tips for Your Visit

Know before you go
  • Bring a camera to capture undersea and Avalon sights

  • Arrive early for hotel pickup if included

  • Not wheelchair accessible

  • Food and drinks are not included

  • ID may be required for ticket collection

Visitor guidelines
  • Arrive promptly at your pickup location

  • Follow crew and guide instructions at all times

  • Do not bring large bags into the semi-submersible

  • Remain seated while the vessel is in motion

FAQs

What is the undersea submarine expedition on Catalina?

You board a semi-submarine that descends below the surface of Catalina's clear waters to view marine life through large viewing windows without getting wet.

How deep does the Catalina submarine go?

The semi-submarine brings passengers about 5-10 feet below the surface, enough to see kelp forests, colorful fish, and the rocky ocean floor clearly.

Do I need to know how to swim for the submarine tour?

No swimming is required. You stay dry inside the fully enclosed submarine cabin throughout the experience.

What marine life will I see from the submarine?

Common sightings include garibaldi fish, kelp bass, sea stars, sea urchins, and dense kelp forests. Seasonal visitors include sea lions and rays.

How long is the submarine portion of the trip?

The submarine tour runs approximately 45 minutes, giving you extended viewing time as the vessel moves slowly along the coastline.

Is the submarine suitable for children?

Yes, kids love the submarine experience. It is safe, dry, and educational, making it one of the most popular family activities on Catalina.

Does the day trip package include the ferry?

Yes, round-trip ferry transportation from the mainland to Catalina Island is included along with the submarine excursion.

Will I have time to explore Avalon?

Yes, the package includes free time in Avalon for shopping, dining, and walking along the waterfront before or after the submarine tour.

Is the submarine experience claustrophobic?

The cabin has large viewing windows and is well-lit. Most passengers find it comfortable. If you have severe claustrophobia, consider this before booking.

What time does the ferry leave to return to the mainland?

Return ferry times are set and included in your itinerary. Your booking confirmation lists the scheduled departure time from Avalon.

Cancelation policy

Free cancellation up to 24 hours before the experience

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