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diveity

Swim-through · Drop-off · Bommie

False Entrance

Coral Sea
Advanced Open Water Certification RequiredBest Season: Sep – Jan
A large gorgonian sea fan spread open against a tropical coral reef backdrop.
Image credit: Dwi sumaiyyah makmur · CC BY-SA 4.0 · Wikimedia Commons
Difficulty
Advanced
Difficulty level
Depth
16 ft98 ft
Depth range
Access
Access not yet documented
Documented months
Sep
Jan
Visibility
98 ft131 ft
Typical visibility
Current
Variable
Good buoyancy control advised
Temperature
73°F84°F
Water temperature

Verification status unavailable Some details may be incomplete or outdated. Confirm current conditions locally, and suggest a correction if you know this site.

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About This Dive Site

False Entrance, Coral Sea

Venturing to False Entrance on Osprey Reef's western wall offers an exhilarating dive into one of the Coral Sea's most dynamic dive sites. Named for its deceptive appearance as a safe passage into the lagoon, which actually lies further north, this dive site distinguishes itself with an intricate network of channels and bommies rather than an open wall. It's a truly remote adventure, accessible only via liveaboard, promising exceptional visibility and abundant marine life.

Dive Site Features

Divers will find a captivating topography at False Entrance, characterized by dramatic swim-throughs, steep drop-offs, and numerous coral bommies. We typically begin our descent at the reef edge, which transitions into a wall at approximately 30 m, though the wall plunges to depths exceeding 1,000 m into the abyss. The site's channels and gutters provide fascinating exploration opportunities. Currents here are variable; in strong conditions, False Entrance transforms into an exciting drift dive, while slack water allows for a more leisurely investigation of its multiple bommies. Visibility is often phenomenal, routinely ranging from 30 to 60 meters, offering crystal-clear views of the vibrant underwater world. Water temperature at False Entrance typically ranges from a comfortable 23°C to 29°C.

Marine Life Encounters

False Entrance is teeming with life, promising incredible encounters around every corner. Divers can expect to find dense schools of Bigeye Trevally and assorted Soldierfish seeking shelter among the reef's formations. The blue is regularly patrolled by impressive pelagics, including Whitetip Reef Sharks and Grey Reef Sharks, with occasional sightings of Silvertip Sharks. Keep an eye out for majestic manta rays and eagle rays gracefully gliding by. Other notable residents include large schools of barracuda and tuna. Closer to the reef, we often spot colorful Sea Goldies, formidable Titan Triggerfish, and various turtles, such as green and loggerhead species. The reef itself is a spectacle of vibrant soft corals, with magnificent Gorgonian Sea Fans and delicate Sea Whips crowding every overhang and reaching out into the channels to capture passing nutrients.

Diving Requirements and Safety

Given the challenging conditions and remote nature of Osprey Reef, we require an Advanced Open Water certification to dive False Entrance. Divers must be prepared for variable and potentially strong currents through the channels, significant depths, and the inherent decompression obligation associated with deep Coral Sea diving. Excellent buoyancy control is highly recommended for navigating the swim-throughs and bommies. This is an advanced dive site that rewards experienced divers with an unforgettable underwater experience.

Advanced Open Water

Current Conditions

Typical current strength at this dive site

Variable

Current strength changes with tides and conditions. Check local conditions before diving.

Strength Scale

None

Mild

Moderate

Strong

Best Time to Visit

Monthly conditions and seasonal highlights — tap a month

OctBest

Peak diving season with optimal visibility, calm seas, and best marine life encounters.

BestGoodLess FavorablePeak

Marine Life

8 species recorded at this site

Hazards & Safety

Be aware of these potential hazards at this dive site

Strong current

Severity: Medium

Channels between the swim-throughs and bommies can run strong.

Depth

Severity: Medium

Formations and drop-off reach 30m.

Decompression obligation

Severity: High

Same remote Coral Sea chamber exposure as Osprey Reef's other sites.

Certification Required

A minimum of Advanced Open Water certification is required to dive this site.

Sources

Sources not yet documented

Source references have not yet been added to this guide. Details may be incomplete or inaccurate; confirm conditions with a local dive operator.

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Location

Coral Sea

-13.9081, 146.6153
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Depth Profile

Vertical range at this site

Minimum Depth

16 ft

Shallowest point

Average Depth

66 ft

Typical dive depth

Maximum Depth

98 ft

Deepest point

Nearby services

Pro Dive Cairns345.2 km
South Shore Divers3283.0 kmApproximate locationKnow better? Tell us
Anda Scuba Diving3573.4 kmApproximate locationKnow better? Tell us
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