Reviewed · SUBMARINE TOURS

Yellow Semi-Submarine Tour of Catalina Island From Avalon

★ 4.5 · 488 reviews From $53 Operated by Catalina Adventure Tours · Bookable on Viator
Book on Viator →

Sunlight meets fish-viewing at 6 feet down.

This semi-submarine tour is a smart way to see Catalina Island underwater without getting wet, thanks to the viewing portholes while you cruise down to Lovers’ Cove. I like that it is easy on schedules with frequent departures, and the vibe is family-friendly, even for kids who cannot snorkel or swim. One thing to plan for: fish food costs extra and is cash only, so you either bring it along or skip the feeding.

I also love the mix of underwater porthole time and then the return views from the top deck. You get to see marine life up close, then pop back up for classic Avalon Bay sightlines while you head back to the Green Pier area. The main drawback is timing, you must arrive 15 minutes early, and the boat leaves promptly.

The boat itself feels like part science, part adventure. The SS Nautilus is inspired by the first nuclear powered submarine, and the torpedo style feeding buttons add a playful touch. If you are motion sensitive, also take it seriously since staying still in a moving vessel can be uncomfortable for some people.

Quick Hits Before You Ride Yellow Semi-Submarine

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Quick Hits Before You Ride Yellow Semi-Submarine

  • Dry viewing at 6 feet (2 meters) down so you can watch marine life without a wetsuit
  • Lovers’ Cove marine sanctuary focus, where fish activity tends to be the main event
  • Hourly departures from mid-morning until sunset makes it easy to slot into a day in Avalon
  • Torpedo feeding buttons are extra, and fish food is cash only
  • Limited boat size (max 48 travelers) helps keep the experience from feeling like a cattle car
  • Top deck return views give you a second look at Avalon Bay after the underwater portion

Boarding SS Nautilus at Green Pleasure Pier: How the Tour Starts

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Boarding SS Nautilus at Green Pleasure Pier: How the Tour Starts
The tour begins at Green Pleasure Pier in Avalon, and it ends back near the same meeting point. Plan to get there early. You must check in at the will-call window, and the crew leaves promptly, so arriving late usually means you miss your slot.

The experience is built around a steady 45-minute ride, not a long day on the water. That matters because you can actually pair it with other Avalon plans, like dinner or a short walk around town, without feeling rushed.

One more practical note: tickets are held for you at will-call on Catalina Island. So when you step off your ferry, you want to keep moving. The tour does not include your ferry to the island, so your travel time to Catalina is part of your real day math.

Other America outings to compare

The 45-Minute Underwater Plan: From Avalon to Lovers’ Cove

Yellow Semi-Submarine Tour of Catalina Island From Avalon - The 45-Minute Underwater Plan: From Avalon to Lovers’ Cove
Once you board the SS Nautilus, you cruise down to Lovers’ Cove, a marine preserved sanctuary known for marine life activity. The key detail is the depth: you view life from about six feet (two meters) below the surface. That low, gentle depth is a big reason this works for families. It feels like you are close to the action, without the stress of snorkeling conditions.

Expect the underwater segment to be the tour’s centerpiece. The boat gives you dry comfort through viewing portholes, and your guide explains what you are looking at while you watch fish gather around the area.

Then you head back up. On the way home, you get a change of scenery with top deck views of the harbor and Avalon Bay. It is the perfect payoff if you want both the underwater look and the classic coastal scenery.

Porthole Viewing and Fish Feeding: The Real Show at 6 Feet Down

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Porthole Viewing and Fish Feeding: The Real Show at 6 Feet Down
This is the kind of activity where kids light up fast. The underwater portion is built for close viewing, and the fish feeding can turn a calm ride into a real crowd-pleaser.

You might see a mix of local species depending on the day and conditions. Some people have reported spotting fish like garibaldi, opal eye, grouper, and even a manta ray. Your exact sightings are not guaranteed, but the overall goal is clear: you want fish close to your porthole.

Feeding is where the fun peaks, but it is not included. The fish food option costs extra, is cash only, and there is mention of about a $20 cash package. You press the torpedo style feeding buttons during the underwater stop, and the effect is immediate, lots of fish come in.

Two practical tips based on what people describe:

  • Try to choose where you sit so your porthole view is clear.
  • If you get motion sick, have a plan. Some people note motion sickness can happen on the ride.

There is also one small visual wrinkle to know. A few comments mention that one side of the windows can be clearer than the other, so if you have the option when boarding, aim for the best visibility.

Undersea Gardens: What You See Besides Fish

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Undersea Gardens: What You See Besides Fish
The tour is not just about fish passing by. You also get a chance to watch undersea garden areas during the stop at Lovers’ Cove. That is important because kelp and habitat create the “why” behind the fish activity.

Instead of only seeing animals like in a tank, you get a sense of how fish relate to sea plants and structure. It is a simple concept, but it helps kids connect the dots. You are essentially getting a live, moving view of a marine habitat.

It is also one reason this feels different from a quick aquarium stop. You are still looking at nature through glass, but the habitat context helps the experience feel more grounded than a generic exhibit.

Same corner of the map, another day out:

Top Deck Return Views: Avalon Bay After the Portholes

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Top Deck Return Views: Avalon Bay After the Portholes
When you come back up, you shift from underwater viewing to open-air scenery. The return trip includes harbor views from the top deck, weather permitting.

This is a nice time window because the ride slows into the familiar Avalon rhythm. You get a second chance at photos, but you also get a change of sensory input, which can help if you spent the whole underwater segment staring at one spot.

Even if you are not a picture person, this top deck part is useful. It gives you a clearer sense of where you are. Avalon feels easier to navigate after you have seen the bay from the water.

Crew Energy and How Guides Keep It Fun

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Crew Energy and How Guides Keep It Fun
The guide is part of the value here because the ride is short. People often appreciate when the person leading the tour keeps things upbeat and explains what you are seeing, right on the spot.

You might hear names like Joe called out for humor and energy, Jo for fun storytelling, and Brad and Dave for a positive, kid-friendly approach. Not every departure will have the same personality, but the overall aim is consistent: make the underwater viewing engaging, not just quiet.

To be fair, a small amount of feedback is negative about crew attitude. If you prefer a gentle, patient pace, you can still enjoy the main spectacle, but keep in mind that the human factor can affect your mood during a guided tour.

Price and Value at $53: What You Actually Get

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Price and Value at $53: What You Actually Get
At $53 per person, this tour sits in the “small splurge with real payoff” category. You are paying for three things at once: a 45-minute guided experience, dry underwater viewing, and a guided route in a marine sanctuary area.

You are not paying for snorkeling gear or a full-day boat outing. That matters if you are traveling with kids, or if you simply do not want to manage water time, sunburn risk, and changing plans.

Still, you should budget realistically. Fish food is extra, and it is mentioned as cash only. So your true cost might be closer to the price of the ticket plus whatever you choose to spend on feeding.

Also remember the ferry cost is separate. You need transportation to Catalina Island, such as Catalina Express or Newport Flyer. When you add that in, you will feel the cost more. But the tour itself is still a strong use of time once you are on the island.

Who This Tour Fits Best (and Who Might Skip It)

Yellow Semi-Submarine Tour of Catalina Island From Avalon - Who This Tour Fits Best (and Who Might Skip It)
This is one of those tours that works for lots of different travel styles. I think it is especially good for:

  • Families with kids who want to see marine life without getting wet
  • Adults who want an easy way to experience underwater viewing during a tight schedule
  • Anyone who wants a short guided activity with a clear highlight payoff

If you are a serious diver who is chasing specific species, a semi-submarine ride might feel too shallow and too short. You might still enjoy it for the novelty, but it will not replace scuba or serious snorkeling.

If you are sensitive to motion, take that seriously. Some people mention discomfort. Bring the right motion sickness plan, or consider sitting where you feel most stable.

How to Choose Your Departure Time in Avalon

Departures run hourly from mid-morning until sunset, and the undersea garden portion runs year round. That flexibility is a real advantage. It means you can choose a time that matches your day, whether you are arriving earlier or planning a later activity.

For many visitors, mid-day departures can be a safe bet because you have more time buffer from ferry schedules and check-in. But the bigger rule is simple: pick a time that lets you reach the Green Pleasure Pier check-in with margin.

Also, the experience can fill up. Even with a max of 48 travelers, people report the boat can feel busy. If you have strong preferences about viewing angle, arrive early so you can get the best available seat.

Should You Book the Yellow Semi-Submarine Tour?

Book it if you want an easy, kid-friendly way to see marine life in Catalina. The depth is shallow enough to feel comfortable, the viewing is dry, and the torpedo style feeding adds a fun interactive element.

I would also book it if you like short experiences that still feel special. Forty-five minutes is not long enough to get bored, and the top deck return gives you a second bonus view.

Skip it or rethink it if you dislike extra costs for add-ons like fish food, or if motion sickness is a consistent issue for you. The tour sounds simple, but the boat movement is real.

If you do decide to go, my best advice is practical: bring extra cash for feeding if that part matters to you, arrive 15 minutes early, and choose a seat that gives you the clearest porthole view. That combination turns a simple ride into the kind of Avalon memory you will actually talk about later.

FAQ

How long is the semi-submarine tour from Avalon?

The ride is about 45 minutes.

Where does the tour start and end?

It starts at Green Pleasure Pier, Avalon, CA 90704, and it ends back at the same meeting point.

Do I need to bring fish food, and is it included?

Fish food is not included. It is offered for an additional charge during the tour and it is mentioned as cash only.

How deep do you go for the underwater viewing?

You view marine life from about six feet (two meters) below the surface at Lovers’ Cove.

How often do tours depart?

Guided tours depart hourly from mid-morning until sunset.

Are there age limits for children?

Children must be accompanied by an adult.

More like this

Submarine Tours, compared.

The full Submarine Tours list →
Submarine Scooter Adventure
★★★★★★★★★★5.0· 2,273 reviews· from $188

Submarine Scooter Adventure

Read our review →
Waikiki: Atlantis Submarine Adventure
★★★★★★★★★★4.5· 1,225 reviews· from $167

Waikiki: Atlantis Submarine Adventure

Read our review →
Pearl Harbor Arizona Memorial – Honolulu Tour – Submarine Access
★★★★★★★★★★3.5· 767 reviews· from $74

Pearl Harbor Arizona Memorial – Honolulu Tour – Submarine Access

Read our review →
Big Island: Atlantis Submarine from Kona Beach
★★★★★★★★★★4.5· 666 reviews· from $160

Big Island: Atlantis Submarine from Kona Beach

Read our review →
Waikiki Submarine Tour
★★★★★★★★★★4.5· 295 reviews· from $167

Waikiki Submarine Tour

Read our review →

Browse the lists this tour appears in

Scroll to Top

Browse America

Every kind of day out, and the best of each.