Episode 7: Catalina Island, California – California's Island Diving Paradise

Martin Gomez   Aug 03, 2026

TOP DIVE DESTINATIONS IN THE USA

Episode 7: Catalina Island, California – California's Island Diving Paradise

 

Just 22 miles off the coast of Southern California lies one of America's most iconic dive destinations.

Catalina Island offers crystal-clear Pacific waters, towering kelp forests, dramatic rocky reefs, abundant marine life, and one of the most famous shore dives in North America.

Whether you're exploring colorful reefs, swimming alongside playful California sea lions, or photographing the island's brilliant orange Garibaldi, Catalina delivers an unforgettable diving experience for divers of every level.

Why Dive Catalina Island?

Catalina Island is part of the Channel Islands ecosystem, where nutrient-rich Pacific waters support an incredible diversity of marine life.

Protected marine conservation areas have helped create healthy underwater habitats filled with fish, kelp forests, rays, octopuses, and countless invertebrates.

Unlike many tropical destinations, Catalina's beauty comes from its rugged underwater landscapes, giant kelp forests, and thriving cold-water ecosystem.

Every dive offers a different adventure.

The Famous Casino Point Dive Park

The Casino Point Dive Park in Avalon is considered one of the best shore dives in the United States.

Designed specifically for divers, it features:

• Easy stair entry

• Underwater navigation markers

• Artificial reefs

• Training platforms

• Excellent visibility on good days

• Facilities dedicated to divers

For many visitors, Casino Point is the perfect introduction to California diving.

Marine Life Highlights

Catalina's underwater world is full of life.

You may encounter:

• California Sea Lions

• Harbor Seals

• Bright Orange Garibaldi

• Bat Rays

• Leopard Sharks

• Giant Black Sea Bass (seasonal)

• California Moray Eels

• Sheephead

• Rockfish

• Kelp Bass

• Giant Pacific Octopus

• Lobsters

• Nudibranchs

• Sea Stars

• Colorful Sponges

• Schools of Sardines and Anchovies

One of the island's greatest attractions is the Garibaldi, California's official state marine fish.

Its brilliant orange color makes it one of the easiest fish to recognize underwater.

Giant Kelp Forests

Catalina is home to spectacular giant kelp forests that can reach heights of over 100 feet.

Swimming through these underwater forests is unlike any tropical reef experience.

Sunlight filters through the kelp canopy while schools of fish weave between the towering stalks, creating a magical atmosphere for divers and photographers alike.

Must-Dive Sites

Casino Point Dive Park

Catalina's most famous dive site.

Perfect for:

• Open Water Divers

• Night Diving

• Underwater Photography

• Training

• Shore Diving

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Farnsworth Banks

One of California's premier advanced dive sites.

Known for:

• Purple hydrocoral

• Deep walls

• Excellent visibility

• Large schools of fish

• Strong currents

Recommended for experienced divers only.

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Ship Rock

A beautiful offshore site featuring:

• Kelp forests

• Sea lions

• Rocky reefs

• Large schools of fish

• Colorful invertebrates

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Eagle Reef

A favorite among underwater photographers.

Excellent opportunities to photograph:

• Garibaldi

• Moray eels

• Nudibranchs

• Octopuses

• Bat rays

Diving Conditions

Catalina offers excellent diving throughout much of the year.

Typical conditions include:

• Water Temperature: 55°F–72°F (13°C–22°C)

• Visibility: 30–100 feet (10–30 meters)

• Dive Style: Shore and Boat Diving

• Current: Usually mild to moderate

Visibility often improves during late summer and fall.

Best Time to Visit

Late Summer – Fall

• Warmest water

• Excellent visibility

• Calm ocean conditions

• Peak diving season

Spring

• Healthy kelp growth

• Active marine life

• Comfortable weather

Winter

• Cooler water

• Fewer visitors

• Excellent underwater photography opportunities

Catalina is truly a year-round diving destination.

Recommended Certification

Open Water Diver

Casino Point is ideal for newly certified divers.

Advanced Open Water Diver

Recommended for:

• Boat dives

• Deeper reefs

• Farnsworth Banks

• Drift dives

• Night diving

Specialties that enhance your Catalina experience include:

• Perfect Buoyancy

• Navigation

• Night & Limited Visibility

• Dry Suit (during colder months)

Photography Paradise

Catalina is one of California's best destinations for underwater photography.

Wide-Angle Subjects

• Giant kelp forests

• Sea lions

• Schools of fish

• Rocky reefs

• Underwater landscapes

Macro Subjects

• Nudibranchs

• Octopus

• Crabs

• Sea stars

• Colorful invertebrates

Morning dives often provide the calmest conditions and best natural light.

Beyond the Diving

Catalina Island offers plenty to enjoy after your dives.

Popular activities include:

• Glass-bottom boat tours

• Kayaking

• Paddleboarding

• Hiking

• Ziplining

• Snorkeling

• Shopping in Avalon

• Oceanfront dining

• Scenic harbor walks

• Wildlife tours

It's the perfect destination for both divers and non-divers.

Travel Tips from Illinois

• Fly from Chicago (ORD) to Los Angeles (LAX) or Long Beach (LGB).

• Take the Catalina Express ferry from Long Beach, San Pedro, or Dana Point.

• Plan a 4–6 day trip to fully enjoy the island.

• Reserve ferry tickets well in advance.

• Bring comfortable walking shoes—Avalon is easy to explore on foot.

• Book dive charters early during the summer season.

Did You Know?

Catalina Island has been welcoming recreational divers for more than 70 years and is considered one of the birthplaces of sport diving in California.

The Casino Point Dive Park was the first underwater park established specifically for scuba diving in California, making it one of the most historic and diver-friendly sites in the United States.

Loves Park Scuba Recommendation

Catalina Island is the perfect destination for divers looking to experience California's legendary kelp forests without venturing into more challenging offshore environments.

It offers the ideal combination of:

• Easy shore diving

• Beautiful kelp forests

• Incredible marine life

• Excellent underwater photography

• Historic dive sites

• Relaxed island atmosphere

Whether you're earning experience after your Open Water certification or searching for your next unforgettable Pacific adventure, Catalina Island deserves a place on every diver's bucket list.

Adventure begins the moment the ferry leaves the mainland...

And beneath the surface, an entirely different California is waiting to be explored.

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Coming Next...

Episode 8: North Carolina – Diving the Graveyard of the Atlantic

Explore historic shipwrecks, powerful currents, warm Gulf Stream waters, sand tiger sharks, and some of the most exciting offshore wreck diving in the United States.