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Map of The Rookery (Santa Barbara Island)
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IntermediateBoat entry

The Rookery (Santa Barbara Island)

California, United States
Open Water suggested3–12 m depthBoat entry5mm wetsuit typical

Boat dive — see Entry & access.

The Rookery (Santa Barbara Island) at a glance

The Rookery (Santa Barbara Island) is a intermediate boat dive site in California, United States with depths of 3–12.2 m (10–40 ft). Typically most favorable Aug · from 3 years of archive data. Divers commonly see California sea lion, Garibaldi, and Kelp bass (calico bass). Recent reports put the water around 22°C (71°F). Check the latest conditions and entry details before you go.

Marine model · graded 3h ago
1.3 mwaves — about a meter and a half expected

Tap a factor for its source and model point · Forecast 22°C · seasonal avg 19°C

Site hazards: Surge in the shallows, territorial bull sea lions during breeding season, very remote open-ocean location

Read the full hazards ↓

Dive windows this week

Best: Mon
Sun7:00–21:00
Mon7:00–20:00
Tue7:00–20:00
Wed7:00–20:00
Thu7:00–20:00
Fri7:00–20:00
Sat—

Favorable windowModerate window— no window

First light 5:37 · Sunrise 6:04 · Sunset 20:00

Source: Open-Meteo marine · model point 8.3 km from site · graded 3h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

What Divers Say

Known for: California sea lion, Garibaldi, Kelp bass (calico bass)
Best time: Late summer and fall, when juvenile sea lions are most playful and seas calmest; visibility around 40 ft or better

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan42%15°C1.9 m
  2. Feb39%14°C2.0 m
  3. Mar37%14°C2.0 m
  4. Apr57%15°C1.6 m
  5. May59%16°C1.5 m
  6. Jun73%18°C1.4 m
  7. Jul85%19°C1.3 m
  8. Aug87%20°C1.3 m
  9. Sep80%20°C1.3 m
  10. Oct63%19°C1.5 m
  11. Nov57%17°C1.6 m
  12. Dec55%16°C1.7 m

August hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

  • California sea lionCommonly seen
  • GaribaldiCommonly seen
  • Kelp bass (calico bass)Commonly seen
  • California sheepheadCommonly seen
  • Elephant sealOccasionally seen
  • Giant sea bassRarely seen
  • BlacksmithCommonly seen

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Site details

Shallow boulder and rockpile site off the southeast side of remote Santa Barbara Island, the smallest of the Channel Islands and reachable only by long-range dive boat. The terrain itself is modest (10-40 ft, often surgy), but the site fronts one of California's largest California sea lion colonies, making it one of the best places anywhere to dive with swarms of playful sea lions. Portions of the island's waters fall within state marine reserves; check current MPA boundaries before taking game.

boatreef

Surge in the shallows, territorial bull sea lions during breeding season, very remote open-ocean location

Reviews

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