Emerald Bay - California
Emerald Bay is a popular shore dive, particularly good for new divers looking to get comfortable. The entry is easy, usually a calm walk-in from the beach. You’ll find a mix of rock formations and kelp, with plenty of garibaldi, senoritas, and the occasional bat ray cruising by. It’s a solid spot for a relaxed dive, especially if you’re working on your buoyancy or just want a chill afternoon underwater.
- Location
- California, United States, North America
- Coordinates
- 33.468037, -118.526050
- Type
- reef
Marine Protected Area: Arrow Point to Lion Head Point (Catalina Island) State Marine Conservation Area
Best Time to Dive in California
The warmest water temperatures in California occur in August, averaging 20.6°C (up to 24.0°C). The coolest conditions are in February at 14.0°C.
The calmest sea conditions are typically in July with average wave heights of 0.60m.
Monthly Water Temperatures
- January: 14.4°C (air: 14.0°C)
- February: 14.0°C (air: 13.8°C)
- March: 14.2°C (air: 13.3°C)
- April: 14.9°C (air: 14.3°C)
- May: 16.6°C (air: 15.4°C)
- June: 18.9°C (air: 17.4°C)
- July: 20.4°C (air: 18.9°C)
- August: 20.6°C (air: 19.6°C)
- September: 20.4°C (air: 19.7°C)
- October: 18.8°C (air: 18.4°C)
- November: 16.3°C (air: 16.0°C)
- December: 15.6°C (air: 14.3°C)
Nearby Dive Sites in California
Nearest Dive Centres to Emerald Bay
- Adventure Sports Unlimited - PADI
- Adventure West Scuba - PADI
- Aloha Scuba
- Anderson's SCUBA diving
- Any Water Dive Center - PADI, DAN
- Aquanautics Dive, Inc - ["PADI"]
Marine Life in California
Home to 10 recorded species including 8 reef fish, 1 other, 1 octopus & squid.
Notable Species
- Vernal Pool Fairy Shrimp (Branchinecta lynchi)
- Rainbow Trout (Oncorhynchus mykiss) - Reef Fish
- Western Mosquitofish (Gambusia affinis) - Reef Fish
- Sea Trout (Salmo trutta) - Reef Fish
- Little post horn squid (Spirula spirula) - Octopus & Squid
- Prickly sculpin (Cottus asper) - Reef Fish
- cutthroat trout (Oncorhynchus clarkii) - Reef Fish
- Striped Bass (Morone saxatilis) - Reef Fish
- brook trout (Salvelinus fontinalis) - Reef Fish
- Ribbonfish (Lepidopus caudatus) - Reef Fish
Recommended Packing List for Emerald Bay
Based on average water temperature of 17.1°C.
- Wetsuit (5-7mm) - recommended for 17°C water
- Hood & Gloves (3-5mm) - helps retain warmth
- Mask - essential for every dive
- Fins
- BCD - buoyancy compensator
- Regulator - your most safety-critical piece of gear
- Dive Computer - tracks depth, time, and NDL
- Surface Marker Buoy (SMB) - essential for boat pickups
- Dive Torch - useful for crevices and colour at depth
- Underwater Camera - capture your diving memories