Bikini Atoll - Bikini Atoll
Black Rock 2, off Bohol, is a site defined by its rock formations, creating interesting swim-throughs and overhangs. We’ve found pygmy seahorses here, tucked into gorgonians, and it’s a good spot for nudibranchs if you go slow. The currents can pick up, so it's better for divers comfortable with drift.
- Location
- Bikini Atoll, Marshall Islands, Central & South Pacific
- Coordinates
- 11.583300, 165.383300
Marine Protected Area: Bikini
Best Time to Dive in Bikini Atoll
The warmest water temperatures in Bikini Atoll occur in January, averaging 27.7°C. The coolest conditions are in December at 27.7°C.
Monthly Water Temperatures
- January: 27.7°C (air: 26.9°C)
- February: 27.7°C (air: 26.7°C)
- March: 27.7°C (air: 26.9°C)
- April: 27.7°C (air: 27.1°C)
- May: 27.7°C (air: 27.5°C)
- June: 27.7°C (air: 27.7°C)
- July: 27.7°C (air: 27.9°C)
- August: 27.7°C (air: 27.9°C)
- September: 27.7°C (air: 28.0°C)
- October: 27.7°C (air: 27.8°C)
- November: 27.7°C (air: 27.8°C)
- December: 27.7°C (air: 27.5°C)
Nearby Dive Sites in Bikini Atoll
- HIJMS Nagato - 35-55m (wreck)
- HIJMS Nagato (Wreck) - 51m (wreck)
- USS Pilotfish - 30-45m (wreck)
- USS Saratoga - 15-55m (wreck)
- USS Saratoga Wreck - 45m (wreck)
Marine Life in Bikini Atoll
Home to 268 recorded species including 190 reef fish, 65 hard corals, 3 clams & mussels, 3 sea snails & nudibranchs, 2 sharks & rays, 1 jellyfish.
Notable Species
- Honeycomb Grouper (Epinephelus merra) - Reef Fish
- Silver Squirrelfish (Sargocentron microstoma) - Reef Fish
- Three-spot wrasse (Halichoeres trimaculatus) - Reef Fish
- Bullethead Parrotfish (Chlorurus sordidus) - Reef Fish
- Belted wrasse (Stethojulis balteata) - Reef Fish
- Manini (Acanthurus triostegus) - Reef Fish
- Hexagon Grouper (Epinephelus hexagonatus) - Reef Fish
- Bird wrasse (Gomphosus varius) - Reef Fish
- Ghost Cardinalfish (Nectamia fusca) - Reef Fish
- Citron Butterfly (Chaetodon citrinellus) - Reef Fish
- Dusky Wrasse (Halichoeres marginatus) - Reef Fish
- Lemon Peel (Centropyge flavissima) - Reef Fish
- Armed Squirrel-fish (Neoniphon sammara) - Reef Fish
- Pearl-spotted wrasse (Halichoeres margaritaceus) - Reef Fish
- Wrasse (Cheilinus trilobatus) - Reef Fish
- Floral wrasse (Cheilinus chlorourus) - Reef Fish
- Clown Tang (Naso lituratus) - Reef Fish
- Peppered Squirrelfish (Sargocentron punctatissimum) - Reef Fish
- Four-saddle Grouper (Epinephelus spilotoceps) - Reef Fish
- Banded Fringe Blenny (Cirripectes variolosus) - Reef Fish
Recommended Packing List for Bikini Atoll
Based on average water temperature of 27.7°C.
- Shorty or Rashguard - warm 28°C water needs minimal exposure protection
- 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