Catalina Island Diving — United States

Catalina Island is Southern California's premier dive destination, a one-hour ferry ride from LA that transports you into towering kelp forests patrolled by giant sea bass and playful sea lions. Casino Point Dive Park offers shore-entry access to some of the best temperate diving in the Americas. Cold water demands a thick wetsuit or drysuit.

Score
62.8 / 100
Country
United States
Region
Pacific Ocean
Area
Avalon, California
Nearest airport
Los Angeles International Airport (LAX)
Visibility
5–30 m
Water temperature
13–21 °C
Max depth
40 m
Current strength
mild
Dive types
kelp forest, reef, wreck, shore
Best months
July, August, September, October, November
Minimum certification
Open Water
Access type
mixed
Average 2-tank dive cost
$140 USD
Budget tier
mid range
Key species
Garibaldi, giant sea bass, bat ray, horn shark, California sea lion, leopard shark
Google rating
4.6 (580 reviews)
Top operators
Catalina Divers Supply, Catalina Scuba Luv
Nearest hyperbaric chamber
USC Catalina Hyperbaric Chamber (~2 km)
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World Class
Beginner Friendly
Catalina Island
United StatesPacific Ocean
62.8

SCORE

33.3942°N

-118.4159°E

Catalina Island is Southern California's premier dive destination, a one-hour ferry ride from LA that transports you into towering kelp forests patrolled by giant sea bass and playful sea lions. Casino Point Dive Park offers shore-entry access to some of the best temperate diving in the Americas. Cold water demands a thick wetsuit or drysuit.

SoCal's Kelp Forest Jewel

Visibility5–30 m
Temperature13–21°C
Max Depth40 m
Currentmild
2-Tank Dive$140
Best MonthsJuly, August, September, October
CertificationOpen WaterBeginner Friendly

Score Breakdown

Click any score to see a detailed breakdown

ML72.0CH30.0VIS60.0SV65.0TMP42.0DA68.0OP80.0TS80.0GT72.0VAL55.0CRD52.0SP78.0

Marine Life

72.0

Species diversity, megafauna encounters, reef fish abundance, macro life, and endemic species.

Species Diversity
70
Megafauna Encounters
65
Reef Fish Abundance
72
Macro Life
75
Endemic Species
68
Marine Life Diversity
72.0
Coral & Reef Health
30.0
Visibility & Conditions
60.0
Dive Site Variety
65.0
Water Temperature
42.0
Depth & Access
68.0
Operator Quality
80.0
Topside Experience
80.0
Getting There
72.0
Value & Cost
55.0
Crowding
52.0
Social Proof
78.0

Key Species

Garibaldigiant sea bassbat rayhorn sharkCalifornia sea lionleopard shark

Dive Types

kelp forestreefwreckshore

Traveling with Non-Divers?

Your non-diving travel companions will find plenty to enjoy topside while you're underwater. Here are some activities to consider.

Activities for Non-Divers

Catalina Casino tourzip-liningglass-bottom boathiking Trans-Catalina Trail

Nearby Cultural Sites

  • Catalina Island Museum
  • Wrigley Memorial & Botanical Garden

Non-Diver Partner Score

8/10

Excellent for non-divers — they'll love it here.

Family FriendlyYes
Restaurants & Nightlifemoderate

Safety & Emergency

Dive Insurance

Dive insurance is essential. Standard travel insurance often excludes scuba diving. We recommend DAN (Divers Alert Network) for comprehensive dive accident coverage.

Learn More at DAN.org
Hyperbaric Chamber2 km — USC Catalina Hyperbaric Chamber
Nearest Hospital2 km

USC operates a hyperbaric chamber on Catalina Island; Avalon has a medical clinic — serious cases transfer to mainland LA hospitals

Skill LevelBeginner Friendly
Current Strengthmild

Top Operators

Catalina Divers Supply

PADI

4.7
350 reviewsNITROX

Catalina Scuba Luv

SSI

4.6
220 reviewsNITROX
Compare This Dive Site
Honest reality check

What your dive shop won't tell you

The minimum certification printed on a brochure is the legal floor, not the honest recommendation. Here's what we actually think you should bring to this site.

Recommended logged dives
55+

Below this we'd send you somewhere easier first.

Recommended certification
Advanced Open Water + Drysuit specialty
“Intermediate minimum — deep profiles and variable viz.”

What will challenge you

  • →Recreational limit of 40 m is reachable here (max depth 40 m). Gas planning and NDL tracking matter.
  • →Cold water — 13°C at the coldest. Drysuit recommended; wetsuit divers will be genuinely cold past 30 minutes.
  • →Wreck penetration requires Wreck specialty training at minimum, and often decompression planning. Don't improvise inside.
  • →Variable visibility
  • →Deep profiles

What will surprise you

  • →Catalina Island has more marine life variety than most divers expect
  • →Local operators know spots the guidebooks miss
Time of day

When to dive it

Every dive shop gives you this briefing at 7am. We just wrote it down. Tidal dependency: slight. Optimal window: First light to 11am for best visibility..

Morning
  • Viz
    high
  • Current
    mild
  • Crowd
    light
  • reef exploration
  • photography

Best light and calmest conditions before afternoon wind picks up.

Afternoon
  • Viz
    moderate
  • Current
    mild
  • Crowd
    moderate
  • drift diving
  • second tank

Wind chop can reduce viz. Still diveable but morning is better.

Month-by-month

Dive forecast

Realistic conditions by month. Viz ranges are what you should actually expect, not best-case marketing numbers. Confidence % is the share of days that match this profile historically.

Month Viz (m) Temp (°C) CurrentSea RainConfidenceHighlights
Jan5–1813MildModLight70%reef fish active, wreck visibility good, peak season crowds
Feb5–1813MildModLight70%reef fish active, wreck visibility good, peak season crowds
Mar5–1813MildModLight70%reef fish active, wreck visibility good, peak season crowds
Apr5–1813MildModLight70%reef fish active, wreck visibility good
May21–3021MildCalmDry70%reef fish active, wreck visibility good
Jun21–3021MildCalmDry70%reef fish active, wreck visibility good
Jul21–3021MildCalmDry70%reef fish active, wreck visibility good
Aug21–3021MildCalmDry70%reef fish active, wreck visibility good
Sep21–3021MildCalmDry70%reef fish active, wreck visibility good
Oct5–1813MildModLight70%reef fish active, wreck visibility good
Nov5–1813MildModLight70%reef fish active, wreck visibility good
Dec5–1813MildModLight70%reef fish active, wreck visibility good
Shoot here

Photography brief

Subjects are only half the shot. A perfect macro site is useless in a three-knot drift, and a wide-angle dream is useless at 35 m with a murky ceiling. These are the conditions, not the hype.

Macro subjects81
Wide angle68
Viz stability52
Hover friendliness100
Natural light42

Recommended kit

  • →Macro lens (60mm or 105mm), focus light, dual strobes positioned for fill
  • →Dedicated video light for dark wreck interiors; don't rely on strobes alone
  • →Cold-water housing — condensation is a real issue below 18°C, bring silica packs
Level up here

What this site will teach you

The dives that made you a better diver are the ones that made you uncomfortable for the right reasons. Here's what this site will quietly train you for.

What it costsEstimates — calibration pending

7-day trip, per person

Rough ranges anchored to existing regional data — not booking quotes. Land-based trip, standard breakdown.

Budget
$2,150–$3,050

Hostels, shore diving, cheap eats

Flights (RT from US)
$720–$880
Accommodation / day
$50–$100
Diving / day
$120–$140
Food / day
$25–$50
Transfers + misc
$50–$150
Mid-range
$3,400–$5,100

3-star hotels, standard boat ops, mix of restaurants

Flights (RT from US)
$1,150–$1,450
Accommodation / day
$120–$220
Diving / day
$140–$180
Food / day
$55–$100
Transfers + misc
$50–$150
Splurge
$5,700–$9,050

Top resorts or liveaboards, premium operators

Flights (RT from US)
$1,800–$2,200
Accommodation / day
$260–$500
Diving / day
$180–$240
Food / day
$110–$220
Transfers + misc
$50–$150

Flights priced round-trip from a major US hub. Figures are per person on a shared room. Solo travelers add ~30% to accommodation.

Pair with

Build a trip around it

Most divers fly across the world for one destination and don't realise another worth-it site is 90 minutes away. Here are the honest pairings.

Best dive types here