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Official tourism page for Guam year-round diving and excellent visibility.
Black Coral Kingdom
Black Coral Kingdom is Guam's tech-only deep reef.
Scuba DivingBoatExpert34m - 61m
CaveDeepReefWall
Local operator required
Boat support and technical gas planning are essential for this site.
Deep Guam reef and wall with caves, black coral, and strong current; strictly for technical divers planning a serious current-and-depth dive.
About Black Coral Kingdom
Black Coral Kingdom is a deep Guam reef and wall with caves, tunnels, sea whips, fans, and black coral stands. It is a technical dive from the start, built for divers who want strong current, serious depth, and the chance to work through a complex reef system rather than cruise a normal recreational wall. Treat it as a planning dive: good gas discipline, overhead awareness, and a clear current strategy are part of the site, not optional extras.
Safety & Access
Site Conditions
Strong currentOverhead environmentDangerous wildlife
Safety Notes
Use technical protocols, monitor gas and decompression closely, and treat caves and tunnels as overhead environments.
Access Restrictions
Technical divers only; extreme depth, strong current, and caves or tunnels define the site.
Legal Notes
Use technical gas planning, local briefing, and overhead-environment discipline before entering the site.
Where Is Black Coral Kingdom?
Featured Operators
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Local Intel For Black Coral Kingdom
Community notes to help plan your visit.
Scuba Diving
A tech-only deep reef and wall dive where caves, tunnels, and current make the profile advanced from the outset.
Freediving
Not a freedive target.
Snorkeling
Not a snorkel site.
Wildlife at Black Coral Kingdom
Species commonly reported at this site, with direct links into their wildlife guides.
Research Estimate At Black Coral Kingdom
Access · 1/5Difficult access
Research estimate
Coral · 5/5Pristine, vibrant coral
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Aquatic Life · 5/5Exceptional variety
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Facilities · 4/5Good facilities
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Crowd / Popularity · 1/5Very quiet
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Current · 5/5Very strong current
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Surge · 3/5Moderate surge
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- VisibilityResearch estimate
- 40m
