We track 27 dive operators in Catalina Island. 5 teach certification courses (6 PADI, 2 NAUI). 4 run snorkelling trips. The biggest cluster is around Avalon, with 4. Listings are ordered by Fin Rank: a published score for how complete and verified each listing is.
The 8 highest-ranked of 27. How Fin Rank works
| Rank | Operator | TripAdvisor | Discovery dive | Agencies | Website | |
|---|---|---|---|---|---|---|
| 1 | Catalina Scuba | 4.8(198) | 4.7 | $120 | PADI | Visit |
Which centres run each site, named on their own websites or confirmed by the owner.

Fin lists 27 dive operators in Catalina Island, with the biggest cluster around Avalon. 5 of them run certification courses.
PADI is the most common agency (6 centres), followed by NAUI (2). SSI, IANTD, SDI/TDI also appear.
Published discovery dive prices we hold range from $120 to $129 USD. Treat these as a guide and confirm with the centre before booking.
4 of the 27 operators we track run snorkelling tours.
Operators are sorted by Fin Rank, a 100-point profile strength score: contact details, what they offer, the dive sites they run, their Google reputation, whether the owner has claimed the listing, and whether their own website links to Fin. 0 listings here are owner-verified. The formula is published in full on the Fin Rank page.
Catalina Scuba is a tour agency located at 1 Casino Way in Avalon, California. They offer scuba diving and snorkeling lessons and tours. The business has a Google rating of 4.8 stars based on 171 reviews.
Diving Catalina provides snorkel and scuba diving activities for all skill levels at Casino Point Dive Park. The operator offers various certification courses and guided tours led by professional instructors.

Catalina Divers Supply is a sporting goods store located at 1 Casino Way in Avalon, California. They offer diving gear, rentals, air fills, classes, and guided tours. The business has a Google rating of 4.8 stars based on 749 reviews.
Eco Dive Center is a scuba diving school and retail shop based in West Los Angeles. They offer a wide range of certification courses from beginner to professional levels and organize local boat trips to California islands. The center also provides equipment sales and repair services.
Kelp Forest is a dive shop located on Catalina Island, California. They offer scuba diving services, including guided dives and equipment rentals, focusing on the underwater kelp forests that give the business its name. The shop aims to provide an immersive experience of Catalina's marine ecosystem.
Ron Moore's Dive Catalina is a dive shop located on Catalina Island, California. They offer scuba diving services including courses, equipment rental, and guided dives. The shop provides access to the local dive sites around Catalina Island, known for their kelp forests and marine life.
Channel Islands Dive Adventures organizes and plans scuba diving trips to various destinations including the Channel Islands, oil rigs, and coastal reefs. The company charters dive boats and provides a trip leader or host for every excursion to assist with organization and safety. They offer both local Southern California trips and longer warm or cold water dive vacations.
| 2 | Diving Catalina | 4.5(146) | none | $129 | NAUI · PADI · SSI | Visit |
| 3 | 4.8(772) | 4.7 | none | none | Visit |
| 4 | Eco Dive Center | 4.8(410) | 4.3 | none | PADI | Visit |
| 5 | Two Harbors Dive & Recreation Center | 4.5(172) | none | none | none | Visit |
| 6 | Dive and Photo | 4.8(59) | none | none | none | Visit |
| 7 | Kelp Forest | 5.0(18) | none | none | PADI | Visit |
| 8 | Snorkeling Catalina | 4.6(97) | 4.5 | none | none | Visit |