Catalina Island is a world apart from the bustling Southern California coast, a serene paradise where nature thrives in both the land and sea. For those seeking an underwater adventure, the island's famous kelp beds provide a scuba diving experience like no other. These underwater forests, swaying gently in the currents, are home to a diverse array of marine life, from playful sea lions to elusive giant sea bass. And with the expertise of Catalina Divers Supply, your adventure beneath the waves is in the best of hands.
The Journey to Catalina
Your journey to Catalina Island begins with a scenic ferry ride aboard the Catalina Express, which departs from Long Beach, San Pedro, or Dana Point. As the mainland fades into the distance, the island’s rugged silhouette comes into view, with its rolling hills and cliffs hinting at the natural wonders that await both above and below the surface. The fresh sea breeze and calming ocean vistas set the stage for a perfect day of scuba diving.
Whether you’re an experienced diver or new to the sport, the island’s crystal-clear waters and unique underwater landscape are a playground for exploration. As you step off the ferry and onto the shores of Avalon, the vibrant colors of the island’s historic architecture welcome you to an adventure that promises to leave a lasting impression.
The Kelp Forests of Catalina
Catalina Island is home to one of the most impressive kelp forests in the world. Kelp forests are considered one of the most productive and dynamic ecosystems on the planet, and Catalina’s clear, temperate waters make it the ideal spot to explore them. These underwater forests are made up of towering kelp stalks that can grow up to 100 feet tall, creating a dreamlike environment for divers to explore. As sunlight filters down through the swaying fronds, the water shimmers with a golden glow, and the dense kelp canopy above creates a sense of being in a magical underwater forest.
The kelp beds provide shelter and food for countless marine species, making it one of the most biodiverse ecosystems in California’s waters. Bright orange Garibaldi fish, the state fish of California, dart between the stalks, while schools of sardines shimmer like silver ribbons. If you're lucky, you might spot a giant sea bass gliding gracefully through the kelp or playful sea lions darting around you, their curiosity piqued by the human visitors to their underwater playground.
Catalina Divers Supply: Your Guide to Underwater Adventure
No diving experience on Catalina Island would be complete without the guidance and expertise of Catalina Divers Supply. Established in 1958, they are the island’s premier diving outfitter, providing everything from scuba gear rentals and air fills to guided dives and certification courses. Their experienced team of instructors and dive masters are deeply familiar with Catalina’s underwater environment, ensuring that your dive is not only safe but filled with unforgettable encounters with marine life.
Catalina Divers Supply has recently relocated to a new, iconic spot at Catalina Island’s historic Casino building. The Casino, a stunning architectural gem built in 1929, has long been a symbol of the island’s heritage, sitting majestically at the northern tip of Avalon Harbor. While not a gambling facility, the Casino houses a ballroom and theater, and its art deco design draws visitors from around the world. Now, Catalina Divers Supply operates from this historic landmark, offering divers a unique connection to both the island’s past and its underwater treasures.
Whether you’re a seasoned diver or a beginner looking to take your first plunge, Catalina Divers Supply offers tailored experiences to meet your needs. If you’re new to diving or haven’t been in the water in a while, their "Discover Scuba Diving" program is the perfect way to get acquainted with the basics before embarking on a real dive in the kelp beds. For certified divers, they offer guided tours that take you to the best spots around the island, ensuring that you don’t miss any of the hidden treasures lurking beneath the waves.
The new location inside the Casino is incredibly convenient for divers. After checking in, you’ll head down to the nearby dive site, gear up, and take the plunge into Catalina’s pristine waters. With their high-quality gear and local expertise, Catalina Divers Supply ensures that you’re fully prepared for the adventure that lies ahead.
Follow them on Instagram and Facebook to get a glimpse of the stunning dives they offer and the underwater world of Catalina.
What to Expect on Your Dive
Diving in Catalina’s kelp beds is a unique experience that combines the thrill of exploration with the serenity of being surrounded by nature. As you descend into the clear waters, you’ll immediately notice the temperature shift, with cooler waters enveloping you as you venture deeper into the kelp forest. The forest itself is alive with motion, as the kelp sways gently in the current, creating a mesmerizing underwater dance.
Visibility in Catalina’s waters can reach up to 60 feet, providing an incredible view of the underwater world. As you move through the kelp, you’ll encounter a wide variety of marine life, from tiny nudibranchs crawling along the kelp blades to larger creatures like bat rays and horn sharks resting on the ocean floor. The sheer diversity of life in the kelp beds is astonishing, and every dive promises new and exciting discoveries.
One of the most thrilling aspects of diving in Catalina is the chance to encounter its resident sea lions. These playful creatures often swim up to divers, their sleek bodies moving effortlessly through the water as they perform flips and spins. Their curious nature often brings them close enough for an up-close encounter, making for an unforgettable dive.
A Conservation Success Story
Catalina’s kelp forests are not only a diving paradise but also a conservation success story. In the 1980s, the kelp forests around the island began to decline due to pollution and other environmental factors. However, thanks to the efforts of the Catalina Island Conservancy and other environmental organizations, the kelp beds have made a remarkable recovery. Today, they stand as a testament to the power of conservation and the importance of protecting our natural environments.
Diving in these kelp forests not only offers an incredible underwater experience but also highlights the importance of preserving these fragile ecosystems. Catalina Divers Supply is committed to sustainable diving practices and educating visitors about the role they can play in protecting the marine environment. By diving with them, you’re not only enjoying an adventure but also supporting the ongoing efforts to preserve Catalina’s unique underwater landscape.
Wrapping Up Your Adventure
After your dive, there’s no better way to reflect on your underwater journey than by taking in the beauty of Catalina’s coastline. Stroll through Avalon’s charming streets, grab a bite to eat at a waterfront café, or simply relax on the beach and soak in the island’s laid-back atmosphere. Whether you’re here for a day trip or a longer stay, Catalina Island offers endless opportunities for adventure and relaxation.
Before heading back to the mainland, take a moment to appreciate the journey that brought you here. From the scenic ferry ride on the Catalina Express to the awe-inspiring dive in the kelp forests, Catalina Island offers an experience that’s hard to match. And with Catalina Divers Supply by your side, you’ve explored the island’s underwater world in the most unforgettable way possible.
Don’t forget to book your trip on the Catalina Express for your next diving adventure. Follow them on Instagram, Twitter, Facebook, Pinterest, and TikTok to stay updated on their latest deals and travel tips.
For more on diving the kelp beds, follow Catalina Divers Supply on Instagram and Facebook.

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